23031124013 has 4 divisors (see below), whose sum is σ = 23065346268. Its totient is φ = 22996901760.

The previous prime is 23031124001. The next prime is 23031124021. The reversal of 23031124013 is 31042113032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11184543049 + 11846580964 = 105757^2 + 108842^2 .

It is a cyclic number.

It is not a de Polignac number, because 23031124013 - 2³² = 18736156717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031124033) 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, 17110118 + ... + 17111463.

It is an arithmetic number, because the mean of its divisors is an integer number (5766336567).

Almost surely, 2^23031124013 is an apocalyptic number.

It is an amenable number.

23031124013 is a deficient number, since it is larger than the sum of its proper divisors (34222255).

23031124013 is an equidigital number, since it uses as much as digits as its factorization.

23031124013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34222254.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23031124013 its reverse (31042113032), we get a palindrome (54073237045).

The spelling of 23031124013 in words is "twenty-three billion, thirty-one million, one hundred twenty-four thousand, thirteen".