12313643540 has 48 divisors (see below), whose sum is σ = 28294830144. Its totient is φ = 4464134400.

The previous prime is 12313643527. The next prime is 12313643593. The reversal of 12313643540 is 4534631321.

It is a junction number, because it is equal to n+sod(n) for n = 12313643497 and 12313643506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11729 + ... + 157368.

It is an arithmetic number, because the mean of its divisors is an integer number (589475628).

Almost surely, 2^12313643540 is an apocalyptic number.

12313643540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313643540 is an abundant number, since it is smaller than the sum of its proper divisors (15981186604).

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

12313643540 is a wasteful number, since it uses less digits than its factorization.

12313643540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169448 (or 169446 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 12313643540 in words is "twelve billion, three hundred thirteen million, six hundred forty-three thousand, five hundred forty".