131115155111401 has 16 divisors (see below), whose sum is σ = 138859065252864. Its totient is φ = 123541548912144.

The previous prime is 131115155111371. The next prime is 131115155111407. The reversal of 131115155111401 is 104111551511131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131115155111401 - 2³³ = 131106565176809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131115155111407) 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, 214360530 + ... + 214971316.

It is an arithmetic number, because the mean of its divisors is an integer number (8678691578304).

Almost surely, 2^{131115155111401} is an apocalyptic number.

It is an amenable number.

131115155111401 is a deficient number, since it is larger than the sum of its proper divisors (7743910141463).

131115155111401 is a wasteful number, since it uses less digits than its factorization.

131115155111401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750180.

The product of its (nonzero) digits is 1500, while the sum is 31.

The spelling of 131115155111401 in words is "one hundred thirty-one trillion, one hundred fifteen billion, one hundred fifty-five million, one hundred eleven thousand, four hundred one".