131033020031 has 4 divisors (see below), whose sum is σ = 131035309464. Its totient is φ = 131030730600.

The previous prime is 131033019967. The next prime is 131033020033. The reversal of 131033020031 is 130020330131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131033020031 - 2⁶ = 131033019967 is a prime.

It is a super-2 number, since 2×131033020031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131033019991 and 131033020009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131033020033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056605 + ... + 1174086.

It is an arithmetic number, because the mean of its divisors is an integer number (32758827366).

Almost surely, 2^131033020031 is an apocalyptic number.

131033020031 is a deficient number, since it is larger than the sum of its proper divisors (2289433).

131033020031 is an equidigital number, since it uses as much as digits as its factorization.

131033020031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289432.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 131033020031 its reverse (130020330131), we get a palindrome (261053350162).

The spelling of 131033020031 in words is "one hundred thirty-one billion, thirty-three million, twenty thousand, thirty-one".