23031013020 has 192 divisors, whose sum is σ = 68658831360. Its totient is φ = 5768144640.

The previous prime is 23031012997. The next prime is 23031013037. The reversal of 23031013020 is 2031013032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78603994 + ... + 78604286.

It is an arithmetic number, because the mean of its divisors is an integer number (357598080).

Almost surely, 2^23031013020 is an apocalyptic number.

23031013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23031013020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34329415680).

23031013020 is an abundant number, since it is smaller than the sum of its proper divisors (45627818340).

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

23031013020 is a wasteful number, since it uses less digits than its factorization.

23031013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 23031013020 its reverse (2031013032), we get a palindrome (25062026052).

The spelling of 23031013020 in words is "twenty-three billion, thirty-one million, thirteen thousand, twenty".