12013031131 has 8 divisors (see below), whose sum is σ = 12293875440. Its totient is φ = 11732253792.

The previous prime is 12013031101. The next prime is 12013031153. The reversal of 12013031131 is 13113031021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12013031131 - 2⁵ = 12013031099 is a prime.

It is a super-2 number, since 2×12013031131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12013031101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690285 + ... + 707473.

It is an arithmetic number, because the mean of its divisors is an integer number (1536734430).

Almost surely, 2^12013031131 is an apocalyptic number.

12013031131 is a deficient number, since it is larger than the sum of its proper divisors (280844309).

12013031131 is a wasteful number, since it uses less digits than its factorization.

12013031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33485.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 12013031131 its reverse (13113031021), we get a palindrome (25126062152).

The spelling of 12013031131 in words is "twelve billion, thirteen million, thirty-one thousand, one hundred thirty-one".