1312232131386 has 24 divisors (see below), whose sum is σ = 3101639583744. Its totient is φ = 397646100360.

The previous prime is 1312232131313. The next prime is 1312232131387. The reversal of 1312232131386 is 6831312322131.

1312232131386 is a `hidden beast` number, since 1 + 3 + 1 + 223 + 21 + 31 + 386 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1312232131386.

It is not an unprimeable number, because it can be changed into a prime (1312232131387) 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, 3313717306 + ... + 3313717701.

It is an arithmetic number, because the mean of its divisors is an integer number (129234982656).

Almost surely, 2^{1312232131386} is an apocalyptic number.

1312232131386 is an abundant number, since it is smaller than the sum of its proper divisors (1789407452358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312232131386 is a wasteful number, since it uses less digits than its factorization.

1312232131386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6627435026 (or 6627435023 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The spelling of 1312232131386 in words is "one trillion, three hundred twelve billion, two hundred thirty-two million, one hundred thirty-one thousand, three hundred eighty-six".