131312139827 has 4 divisors (see below), whose sum is σ = 143249607096. Its totient is φ = 119374672560.

The previous prime is 131312139817. The next prime is 131312139853. The reversal of 131312139827 is 728931213131.

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

It is not a de Polignac number, because 131312139827 - 2⁴ = 131312139811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131312139817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5968733618 + ... + 5968733639.

It is an arithmetic number, because the mean of its divisors is an integer number (35812401774).

Almost surely, 2^131312139827 is an apocalyptic number.

131312139827 is a deficient number, since it is larger than the sum of its proper divisors (11937467269).

131312139827 is a wasteful number, since it uses less digits than its factorization.

131312139827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11937467268.

The product of its digits is 54432, while the sum is 41.

The spelling of 131312139827 in words is "one hundred thirty-one billion, three hundred twelve million, one hundred thirty-nine thousand, eight hundred twenty-seven".