131387253842 has 64 divisors (see below), whose sum is σ = 220217647104. Its totient is φ = 58405596480.

The previous prime is 131387253791. The next prime is 131387253853. The reversal of 131387253842 is 248352783131.

It is a super-2 number, since 2×131387253842² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 63074933 + ... + 63077015.

It is an arithmetic number, because the mean of its divisors is an integer number (3440900736).

Almost surely, 2^131387253842 is an apocalyptic number.

131387253842 is a deficient number, since it is larger than the sum of its proper divisors (88830393262).

131387253842 is a wasteful number, since it uses less digits than its factorization.

131387253842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943.

The product of its digits is 967680, while the sum is 47.

The spelling of 131387253842 in words is "one hundred thirty-one billion, three hundred eighty-seven million, two hundred fifty-three thousand, eight hundred forty-two".