23131313020 has 12 divisors (see below), whose sum is σ = 48575757384. Its totient is φ = 9252525200.

The previous prime is 23131312991. The next prime is 23131313069. The reversal of 23131313020 is 2031313132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578282806 + ... + 578282845.

It is an arithmetic number, because the mean of its divisors is an integer number (4047979782).

Almost surely, 2^23131313020 is an apocalyptic number.

23131313020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23131313020 is an abundant number, since it is smaller than the sum of its proper divisors (25444444364).

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

23131313020 is a wasteful number, since it uses less digits than its factorization.

23131313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156565660 (or 1156565658 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 23131313020 its reverse (2031313132), we get a palindrome (25162626152).

The spelling of 23131313020 in words is "twenty-three billion, one hundred thirty-one million, three hundred thirteen thousand, twenty".