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12331110432 = 253922713921
BaseRepresentation
bin10110111101111110…
…11101000000100000
31011211101011022110210
423132333131000200
5200223231013212
65355334254120
7614401465164
oct133677350040
934741138423
1012331110432
115258654863
1224817b7340
131216935b64
1484d9acca4
154c287753c
hex2defdd020

12331110432 has 48 divisors (see below), whose sum is σ = 32374998432. Its totient is φ = 4109629440.

The previous prime is 12331110413. The next prime is 12331110437. The reversal of 12331110432 is 23401113321.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 12331110399 and 12331110408.

It is not an unprimeable number, because it can be changed into a prime (12331110437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878832 + ... + 892752.

It is an arithmetic number, because the mean of its divisors is an integer number (674479134).

Almost surely, 212331110432 is an apocalyptic number.

12331110432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12331110432 is an abundant number, since it is smaller than the sum of its proper divisors (20043888000).

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

12331110432 is a wasteful number, since it uses less digits than its factorization.

12331110432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23161 (or 23153 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12331110432 its reverse (23401113321), we get a palindrome (35732223753).

The spelling of 12331110432 in words is "twelve billion, three hundred thirty-one million, one hundred ten thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 9227 13921 18454 27681 27842 36908 41763 55362 55684 73816 83526 110724 111368 147632 167052 221448 222736 295264 334104 442896 445472 668208 885792 1336416 128449067 256898134 385347201 513796268 770694402 1027592536 1541388804 2055185072 3082777608 4110370144 6165555216 12331110432