131031213131 has 8 divisors (see below), whose sum is σ = 161269185504. Its totient is φ = 103673047680.

The previous prime is 131031213119. The next prime is 131031213149. The reversal of 131031213131 is 131312130131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131031213131 is a prime.

It is a super-2 number, since 2×131031213131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131031213151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719951630 + ... + 719951811.

It is an arithmetic number, because the mean of its divisors is an integer number (20158648188).

Almost surely, 2^131031213131 is an apocalyptic number.

131031213131 is a deficient number, since it is larger than the sum of its proper divisors (30237972373).

131031213131 is a wasteful number, since it uses less digits than its factorization.

131031213131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439903461.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 131031213131 its reverse (131312130131), we get a palindrome (262343343262).

The spelling of 131031213131 in words is "one hundred thirty-one billion, thirty-one million, two hundred thirteen thousand, one hundred thirty-one".