131551939781115 has 16 divisors (see below), whose sum is σ = 240552118457088. Its totient is φ = 60138029614176.

The previous prime is 131551939781107. The next prime is 131551939781161. The reversal of 131551939781115 is 511187939155131.

It is not a de Polignac number, because 131551939781115 - 2³ = 131551939781107 is a prime.

It is a super-2 number, since 2×131551939781115² (a number of 29 digits) contains 22 as substring.

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, 626437808377 + ... + 626437808586.

It is an arithmetic number, because the mean of its divisors is an integer number (15034507403568).

Almost surely, 2^{131551939781115} is an apocalyptic number.

131551939781115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131551939781115 is a deficient number, since it is larger than the sum of its proper divisors (109000178675973).

131551939781115 is a wasteful number, since it uses less digits than its factorization.

131551939781115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252875616978.

The product of its digits is 5103000, while the sum is 60.

The spelling of 131551939781115 in words is "one hundred thirty-one trillion, five hundred fifty-one billion, nine hundred thirty-nine million, seven hundred eighty-one thousand, one hundred fifteen".