12131881895 has 16 divisors (see below), whose sum is σ = 17211735360. Its totient is φ = 8032141824.

The previous prime is 12131881889. The next prime is 12131881901. The reversal of 12131881895 is 59818813121.

It is an interprime number because it is at equal distance from previous prime (12131881889) and next prime (12131881901).

It is not a de Polignac number, because 12131881895 - 2⁸ = 12131881639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5975282 + ... + 5977311.

It is an arithmetic number, because the mean of its divisors is an integer number (1075733460).

Almost surely, 2^12131881895 is an apocalyptic number.

12131881895 is a deficient number, since it is larger than the sum of its proper divisors (5079853465).

12131881895 is a wasteful number, since it uses less digits than its factorization.

12131881895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11952634.

The product of its digits is 138240, while the sum is 47.

The spelling of 12131881895 in words is "twelve billion, one hundred thirty-one million, eight hundred eighty-one thousand, eight hundred ninety-five".