12255503131 has 4 divisors (see below), whose sum is σ = 12256523064. Its totient is φ = 12254483200.

The previous prime is 12255503123. The next prime is 12255503137. The reversal of 12255503131 is 13130555221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12255503131 - 2³ = 12255503123 is a prime.

It is a super-2 number, since 2×12255503131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12255503131.

It is not an unprimeable number, because it can be changed into a prime (12255503137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491725 + ... + 516046.

It is an arithmetic number, because the mean of its divisors is an integer number (3064130766).

Almost surely, 2^12255503131 is an apocalyptic number.

12255503131 is a deficient number, since it is larger than the sum of its proper divisors (1019933).

12255503131 is a wasteful number, since it uses less digits than its factorization.

12255503131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019932.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 12255503131 in words is "twelve billion, two hundred fifty-five million, five hundred three thousand, one hundred thirty-one".