12013332131 has 32 divisors (see below), whose sum is σ = 12770182656. Its totient is φ = 11289600000.

The previous prime is 12013332127. The next prime is 12013332137. The reversal of 12013332131 is 13123331021.

It is a cyclic number.

It is not a de Polignac number, because 12013332131 - 2² = 12013332127 is a prime.

It is a super-2 number, since 2×12013332131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12013332137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46744355 + ... + 46744611.

It is an arithmetic number, because the mean of its divisors is an integer number (399068208).

Almost surely, 2^12013332131 is an apocalyptic number.

12013332131 is a deficient number, since it is larger than the sum of its proper divisors (756850525).

12013332131 is a wasteful number, since it uses less digits than its factorization.

12013332131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12013332131 its reverse (13123331021), we get a palindrome (25136663152).

The spelling of 12013332131 in words is "twelve billion, thirteen million, three hundred thirty-two thousand, one hundred thirty-one".