131213223231986 has 64 divisors (see below), whose sum is σ = 230023610880000. Its totient is φ = 54974463635520.

The previous prime is 131213223231971. The next prime is 131213223232019. The reversal of 131213223231986 is 689132322312131.

It is a self number, because there is not a number n which added to its sum of digits gives 131213223231986.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155760305 + ... + 156600443.

It is an arithmetic number, because the mean of its divisors is an integer number (3594118920000).

Almost surely, 2^{131213223231986} is an apocalyptic number.

131213223231986 is a deficient number, since it is larger than the sum of its proper divisors (98810387648014).

131213223231986 is a wasteful number, since it uses less digits than its factorization.

131213223231986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841327.

The product of its digits is 559872, while the sum is 47.

The spelling of 131213223231986 in words is "one hundred thirty-one trillion, two hundred thirteen billion, two hundred twenty-three million, two hundred thirty-one thousand, nine hundred eighty-six".