12313235136 has 28 divisors (see below), whose sum is σ = 32578768472. Its totient is φ = 4104411648.

The previous prime is 12313235131. The next prime is 12313235153. The reversal of 12313235136 is 63153231321.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12313235131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32065525 + ... + 32065908.

Almost surely, 2^12313235136 is an apocalyptic number.

12313235136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12313235136 is an abundant number, since it is smaller than the sum of its proper divisors (20265533336).

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

12313235136 is an equidigital number, since it uses as much as digits as its factorization.

12313235136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64131448 (or 64131438 counting only the distinct ones).

The product of its digits is 9720, while the sum is 30.

Adding to 12313235136 its reverse (63153231321), we get a palindrome (75466466457).

The spelling of 12313235136 in words is "twelve billion, three hundred thirteen million, two hundred thirty-five thousand, one hundred thirty-six".