12312304032 has 96 divisors (see below), whose sum is σ = 38210659200. Its totient is φ = 3396492288.

The previous prime is 12312304031. The next prime is 12312304033. The reversal of 12312304032 is 23040321321.

It is an interprime number because it is at equal distance from previous prime (12312304031) and next prime (12312304033).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12312304031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296407 + ... + 335382.

It is an arithmetic number, because the mean of its divisors is an integer number (398027700).

Almost surely, 2^12312304032 is an apocalyptic number.

12312304032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12312304032 is an abundant number, since it is smaller than the sum of its proper divisors (25898355168).

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

12312304032 is a wasteful number, since it uses less digits than its factorization.

12312304032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631838 (or 631830 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12312304032 its reverse (23040321321), we get a palindrome (35352625353).

The spelling of 12312304032 in words is "twelve billion, three hundred twelve million, three hundred four thousand, thirty-two".