23013000040 has 32 divisors (see below), whose sum is σ = 53449551360. Its totient is φ = 8908257600.

The previous prime is 23013000019. The next prime is 23013000041. The reversal of 23013000040 is 4000031032.

It is not an unprimeable number, because it can be changed into a prime (23013000041) 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, 9278196 + ... + 9280675.

It is an arithmetic number, because the mean of its divisors is an integer number (1670298480).

Almost surely, 2^23013000040 is an apocalyptic number.

23013000040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23013000040 is an abundant number, since it is smaller than the sum of its proper divisors (30436551320).

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

23013000040 is a wasteful number, since it uses less digits than its factorization.

23013000040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18558913 (or 18558909 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 23013000040 its reverse (4000031032), we get a palindrome (27013031072).

The spelling of 23013000040 in words is "twenty-three billion, thirteen million, forty", and thus it is an aban number and an uban number.