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1213103000232 = 2332191931459229
BaseRepresentation
bin10001101001110010100…
…100101100101010101000
311021222020020022111012100
4101221302210230222220
5124333413332001412
62325143011213400
7153433552236624
oct21516244545250
94258206274170
101213103000232
11428524022102
121771358a7260
138a51a110996
1442a00826184
15218501d5edc
hex11a7292caa8

1213103000232 has 96 divisors (see below), whose sum is σ = 3460206204000. Its totient is φ = 382885937280.

The previous prime is 1213103000177. The next prime is 1213103000233. The reversal of 1213103000232 is 2320003013121.

1213103000232 is a `hidden beast` number, since 1 + 2 + 131 + 0 + 300 + 0 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1213103000233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2411994 + ... + 2871222.

It is an arithmetic number, because the mean of its divisors is an integer number (36043814625).

Almost surely, 21213103000232 is an apocalyptic number.

1213103000232 is a gapful number since it is divisible by the number (12) 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 1213103000232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1730103102000).

1213103000232 is an abundant number, since it is smaller than the sum of its proper divisors (2247103203768).

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

1213103000232 is a wasteful number, since it uses less digits than its factorization.

1213103000232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461191 (or 461184 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1213103000232 its reverse (2320003013121), we get a palindrome (3533106013353).

The spelling of 1213103000232 in words is "one trillion, two hundred thirteen billion, one hundred three million, two hundred thirty-two", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 9 12 18 19 24 36 38 57 72 76 114 152 171 228 342 456 684 1368 1931 3862 5793 7724 11586 15448 17379 23172 34758 36689 46344 69516 73378 110067 139032 146756 220134 293512 330201 440268 459229 660402 880536 918458 1320804 1377687 1836916 2641608 2755374 3673832 4133061 5510748 8266122 8725351 11021496 16532244 17450702 26176053 33064488 34901404 52352106 69802808 78528159 104704212 157056318 209408424 314112636 628225272 886771199 1773542398 2660313597 3547084796 5320627194 7094169592 7980940791 10641254388 15961881582 16848652781 21282508776 31923763164 33697305562 50545958343 63847526328 67394611124 101091916686 134789222248 151637875029 202183833372 303275750058 404367666744 606551500116 1213103000232