131012133011031 has 4 divisors (see below), whose sum is σ = 174682844014712. Its totient is φ = 87341422007352.

The previous prime is 131012133011021. The next prime is 131012133011051. The reversal of 131012133011031 is 130110331210131.

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

It is not a de Polignac number, because 131012133011031 - 2²¹ = 131012130913879 is a prime.

It is a super-2 number, since 2×131012133011031² (a number of 29 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 = 131012133010989 and 131012133011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012133011021) 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, 21835355501836 + ... + 21835355501841.

It is an arithmetic number, because the mean of its divisors is an integer number (43670711003678).

Almost surely, 2^{131012133011031} is an apocalyptic number.

131012133011031 is a deficient number, since it is larger than the sum of its proper divisors (43670711003681).

131012133011031 is an equidigital number, since it uses as much as digits as its factorization.

131012133011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43670711003680.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 131012133011031 its reverse (130110331210131), we get a palindrome (261122464221162).

The spelling of 131012133011031 in words is "one hundred thirty-one trillion, twelve billion, one hundred thirty-three million, eleven thousand, thirty-one".