12131312130 has 48 divisors (see below), whose sum is σ = 36047329344. Its totient is φ = 2772871200.

The previous prime is 12131312117. The next prime is 12131312197. The reversal of 12131312130 is 3121313121.

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 23 ways as a sum of consecutive naturals, for example, 9627396 + ... + 9628655.

It is an arithmetic number, because the mean of its divisors is an integer number (750986028).

Almost surely, 2^12131312130 is an apocalyptic number.

12131312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131312130 is an abundant number, since it is smaller than the sum of its proper divisors (23916017214).

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

12131312130 is a wasteful number, since it uses less digits than its factorization.

12131312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19256071 (or 19256068 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12131312130 its reverse (3121313121), we get a palindrome (15252625251).

Subtracting from 12131312130 its reverse (3121313121), we obtain a palindrome (9009999009).

The spelling of 12131312130 in words is "twelve billion, one hundred thirty-one million, three hundred twelve thousand, one hundred thirty".