131320232031 has 8 divisors (see below), whose sum is σ = 178397296560. Its totient is φ = 85894994432.

The previous prime is 131320232009. The next prime is 131320232033. The reversal of 131320232031 is 130232023131.

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

It is a cyclic number.

It is not a de Polignac number, because 131320232031 - 2⁹ = 131320231519 is a prime.

It is a super-2 number, since 2×131320232031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131320231989 and 131320232007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320232033) 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, 412956546 + ... + 412956863.

It is an arithmetic number, because the mean of its divisors is an integer number (22299662070).

Almost surely, 2^131320232031 is an apocalyptic number.

131320232031 is a deficient number, since it is larger than the sum of its proper divisors (47077064529).

131320232031 is an equidigital number, since it uses as much as digits as its factorization.

131320232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825913465.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131320232031 its reverse (130232023131), we get a palindrome (261552255162).

The spelling of 131320232031 in words is "one hundred thirty-one billion, three hundred twenty million, two hundred thirty-two thousand, thirty-one".