12855483131 has 4 divisors (see below), whose sum is σ = 12860155512. Its totient is φ = 12850810752.

The previous prime is 12855483107. The next prime is 12855483143. The reversal of 12855483131 is 13138455821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13138455821 = 101 ⋅130083721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12855483131 is a prime.

It is a super-2 number, since 2×12855483131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12855483191) 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, 2332061 + ... + 2337566.

It is an arithmetic number, because the mean of its divisors is an integer number (3215038878).

Almost surely, 2^12855483131 is an apocalyptic number.

12855483131 is a deficient number, since it is larger than the sum of its proper divisors (4672381).

12855483131 is an equidigital number, since it uses as much as digits as its factorization.

12855483131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672380.

The product of its digits is 115200, while the sum is 41.

The spelling of 12855483131 in words is "twelve billion, eight hundred fifty-five million, four hundred eighty-three thousand, one hundred thirty-one".