12033031131 has 12 divisors (see below), whose sum is σ = 18961140120. Its totient is φ = 7292746080.

The previous prime is 12033031123. The next prime is 12033031169. The reversal of 12033031131 is 13113033021.

It is a happy number.

12033031131 is a `hidden beast` number, since 1 + 20 + 330 + 311 + 3 + 1 = 666.

It is not a de Polignac number, because 12033031131 - 2³ = 12033031123 is a prime.

It is a super-2 number, since 2×12033031131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12033031111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60772786 + ... + 60772983.

It is an arithmetic number, because the mean of its divisors is an integer number (1580095010).

Almost surely, 2^12033031131 is an apocalyptic number.

12033031131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12033031131 is a deficient number, since it is larger than the sum of its proper divisors (6928108989).

12033031131 is a wasteful number, since it uses less digits than its factorization.

12033031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121545786 (or 121545783 counting only the distinct ones).

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

Adding to 12033031131 its reverse (13113033021), we get a palindrome (25146064152).

The spelling of 12033031131 in words is "twelve billion, thirty-three million, thirty-one thousand, one hundred thirty-one".