23201131020 has 24 divisors (see below), whose sum is σ = 64963167024. Its totient is φ = 6186968256.

The previous prime is 23201131007. The next prime is 23201131033. The reversal of 23201131020 is 2013110232.

It is an interprime number because it is at equal distance from previous prime (23201131007) and next prime (23201131033).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193342699 + ... + 193342818.

It is an arithmetic number, because the mean of its divisors is an integer number (2706798626).

Almost surely, 2^23201131020 is an apocalyptic number.

23201131020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23201131020 is an abundant number, since it is smaller than the sum of its proper divisors (41762036004).

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

23201131020 is a wasteful number, since it uses less digits than its factorization.

23201131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386685529 (or 386685527 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23201131020 its reverse (2013110232), we get a palindrome (25214241252).

The spelling of 23201131020 in words is "twenty-three billion, two hundred one million, one hundred thirty-one thousand, twenty".