131021011200231 has 40 divisors (see below), whose sum is σ = 206465108129280. Its totient is φ = 82572916782672.

The previous prime is 131021011200179. The next prime is 131021011200271. The reversal of 131021011200231 is 132002110120131.

131021011200231 is a `hidden beast` number, since 1 + 3 + 10 + 210 + 11 + 200 + 231 = 666.

It is not a de Polignac number, because 131021011200231 - 2⁷ = 131021011200103 is a prime.

It is a super-2 number, since 2×131021011200231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021011200271) 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, 90431031 + ... + 91868456.

It is an arithmetic number, because the mean of its divisors is an integer number (5161627703232).

Almost surely, 2^{131021011200231} is an apocalyptic number.

131021011200231 is a deficient number, since it is larger than the sum of its proper divisors (75444096929049).

131021011200231 is a wasteful number, since it uses less digits than its factorization.

131021011200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182299985 (or 182299976 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 131021011200231 its reverse (132002110120131), we get a palindrome (263023121320362).

The spelling of 131021011200231 in words is "one hundred thirty-one trillion, twenty-one billion, eleven million, two hundred thousand, two hundred thirty-one".