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1232102031020 = 2257172741188869
BaseRepresentation
bin10001111011011111000…
…000001111111010101100
311100210021022100020211022
4101323133000033322230
5130141321104443040
62342004142313312
7155005431315140
oct21733700177254
94323238306738
101232102031020
11435593526143
1217a958588838
138c2572cc233
14438c3bcb220
15220b312d6b5
hex11edf00feac

1232102031020 has 96 divisors (see below), whose sum is σ = 3132147553920. Its totient is φ = 397438709760.

The previous prime is 1232102031001. The next prime is 1232102031047. The reversal of 1232102031020 is 201302012321.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1232102031020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6429146 + ... + 6618014.

It is an arithmetic number, because the mean of its divisors is an integer number (32626537020).

Almost surely, 21232102031020 is an apocalyptic number.

1232102031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232102031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566073776960).

1232102031020 is an abundant number, since it is smaller than the sum of its proper divisors (1900045522900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1232102031020 is a wasteful number, since it uses less digits than its factorization.

1232102031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191643 (or 191641 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1232102031020 its reverse (201302012321), we get a palindrome (1433404043341).

The spelling of 1232102031020 in words is "one trillion, two hundred thirty-two billion, one hundred two million, thirty-one thousand, twenty".

Divisors: 1 2 4 5 7 10 14 17 20 28 34 35 68 70 85 119 140 170 238 340 476 595 1190 2380 2741 5482 10964 13705 19187 27410 38374 46597 54820 76748 93194 95935 186388 188869 191870 232985 326179 377738 383740 465970 652358 755476 931940 944345 1304716 1322083 1630895 1888690 2644166 3210773 3261790 3777380 5288332 6421546 6523580 6610415 12843092 13220830 16053865 22475411 26441660 32107730 44950822 64215460 89901644 112377055 224754110 449508220 517689929 1035379858 2070759716 2588449645 3623829503 5176899290 7247659006 8800728793 10353798580 14495318012 17601457586 18119147515 35202915172 36238295030 44003643965 61605101551 72476590060 88007287930 123210203102 176014575860 246420406204 308025507755 616051015510 1232102031020