23131013130 has 128 divisors (see below), whose sum is σ = 63914054400. Its totient is φ = 5949096192.

The previous prime is 23131013119. The next prime is 23131013149. The reversal of 23131013130 is 3131013132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 830592 + ... + 857988.

It is an arithmetic number, because the mean of its divisors is an integer number (499328550).

Almost surely, 2^23131013130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23131013130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31957027200).

23131013130 is an abundant number, since it is smaller than the sum of its proper divisors (40783041270).

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

23131013130 is a wasteful number, since it uses less digits than its factorization.

23131013130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27525 (or 27519 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 23131013130 its reverse (3131013132), we get a palindrome (26262026262).

The spelling of 23131013130 in words is "twenty-three billion, one hundred thirty-one million, thirteen thousand, one hundred thirty".