23013231320 has 16 divisors (see below), whose sum is σ = 51779770560. Its totient is φ = 9205292512.

The previous prime is 23013231277. The next prime is 23013231343. The reversal of 23013231320 is 2313231032.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23013231292 and 23013231301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287665352 + ... + 287665431.

It is an arithmetic number, because the mean of its divisors is an integer number (3236235660).

Almost surely, 2^23013231320 is an apocalyptic number.

23013231320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23013231320 is an abundant number, since it is smaller than the sum of its proper divisors (28766539240).

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

23013231320 is a wasteful number, since it uses less digits than its factorization.

23013231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575330794 (or 575330790 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23013231320 its reverse (2313231032), we get a palindrome (25326462352).

The spelling of 23013231320 in words is "twenty-three billion, thirteen million, two hundred thirty-one thousand, three hundred twenty".