131331311231001 has 40 divisors (see below), whose sum is σ = 204368358673440. Its totient is φ = 75014369087616.

The previous prime is 131331311230997. The next prime is 131331311231027. The reversal of 131331311231001 is 100132113133131.

It is not a de Polignac number, because 131331311231001 - 2² = 131331311230997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131331311231041) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12950241 + ... + 20745393.

It is an arithmetic number, because the mean of its divisors is an integer number (5109208966836).

Almost surely, 2^{131331311231001} is an apocalyptic number.

It is an amenable number.

131331311231001 is a deficient number, since it is larger than the sum of its proper divisors (73037047442439).

131331311231001 is an frugal number, since it uses more digits than its factorization.

131331311231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7797523 (or 7797502 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 131331311231001 its reverse (100132113133131), we get a palindrome (231463424364132).

The spelling of 131331311231001 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, three hundred eleven million, two hundred thirty-one thousand, one".