12045244131 has 16 divisors (see below), whose sum is σ = 17849289120. Its totient is φ = 8028145440.

The previous prime is 12045244117. The next prime is 12045244147. The reversal of 12045244131 is 13144254021.

12045244131 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 524 + 4 + 131 = 666.

It is not a de Polignac number, because 12045244131 - 2²⁷ = 11911026403 is a prime.

It is a super-2 number, since 2×12045244131² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12045244095 and 12045244104.

It is not an unprimeable number, because it can be changed into a prime (12045244111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57621 + ... + 165561.

It is an arithmetic number, because the mean of its divisors is an integer number (1115580570).

Almost surely, 2^12045244131 is an apocalyptic number.

12045244131 is a deficient number, since it is larger than the sum of its proper divisors (5804044989).

12045244131 is a wasteful number, since it uses less digits than its factorization.

12045244131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112083 (or 112077 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 12045244131 its reverse (13144254021), we get a palindrome (25189498152).

The spelling of 12045244131 in words is "twelve billion, forty-five million, two hundred forty-four thousand, one hundred thirty-one".