131120344215511 has 16 divisors (see below), whose sum is σ = 155418859583488. Its totient is φ = 108247952685600.

The previous prime is 131120344215493. The next prime is 131120344215521. The reversal of 131120344215511 is 115512443021131.

It is not a de Polignac number, because 131120344215511 - 2⁹ = 131120344214999 is a prime.

It is a super-2 number, since 2×131120344215511² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131120344215521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431805440 + ... + 1431897013.

It is an arithmetic number, because the mean of its divisors is an integer number (9713678723968).

Almost surely, 2^{131120344215511} is an apocalyptic number.

131120344215511 is a deficient number, since it is larger than the sum of its proper divisors (24298515367977).

131120344215511 is a wasteful number, since it uses less digits than its factorization.

131120344215511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863702702.

The product of its (nonzero) digits is 14400, while the sum is 34.

Adding to 131120344215511 its reverse (115512443021131), we get a palindrome (246632787236642).

The spelling of 131120344215511 in words is "one hundred thirty-one trillion, one hundred twenty billion, three hundred forty-four million, two hundred fifteen thousand, five hundred eleven".