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13102101312020 = 22571931158890387
BaseRepresentation
bin1011111010101001001000…
…0110000011001000010100
31201101112210222010120201022
42332222102012003020110
53204131100413441040
643511004450020312
72521411166420120
oct276522206031024
951345728116638
1013102101312020
1141a162a68a6a6
121577337277698
137406a4924c46
14334206194580
1517ac380e76b5
hexbea92183214

13102101312020 has 96 divisors (see below), whose sum is σ = 34167789035520. Its totient is φ = 4118438805120.

The previous prime is 13102101312007. The next prime is 13102101312029. The reversal of 13102101312020 is 2021310120131.

It is a self number, because there is not a number n which added to its sum of digits gives 13102101312020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13102101312029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79362734 + ... + 79527653.

It is an arithmetic number, because the mean of its divisors is an integer number (355914469120).

Almost surely, 213102101312020 is an apocalyptic number.

13102101312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13102101312020 is an abundant number, since it is smaller than the sum of its proper divisors (21065687723500).

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

13102101312020 is a wasteful number, since it uses less digits than its factorization.

13102101312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158890453 (or 158890451 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13102101312020 its reverse (2021310120131), we get a palindrome (15123411432151).

The spelling of 13102101312020 in words is "thirteen trillion, one hundred two billion, one hundred one million, three hundred twelve thousand, twenty".

Divisors: 1 2 4 5 7 10 14 19 20 28 31 35 38 62 70 76 95 124 133 140 155 190 217 266 310 380 434 532 589 620 665 868 1085 1178 1330 2170 2356 2660 2945 4123 4340 5890 8246 11780 16492 20615 41230 82460 158890387 317780774 635561548 794451935 1112232709 1588903870 2224465418 3018917353 3177807740 4448930836 4925601997 5561163545 6037834706 9851203994 11122327090 12075669412 15094586765 19702407988 21132421471 22244654180 24628009985 30189173530 34479213979 42264842942 49256019970 60378347060 68958427958 84529685884 93586437943 98512039940 105662107355 137916855916 172396069895 187172875886 211324214710 344792139790 374345751772 422648429420 467932189715 655105065601 689584279580 935864379430 1310210131202 1871728758860 2620420262404 3275525328005 6551050656010 13102101312020