131020224200031 has 16 divisors (see below), whose sum is σ = 179243555178240. Its totient is φ = 85078738073280.

The previous prime is 131020224200023. The next prime is 131020224200087. The reversal of 131020224200031 is 130002422020131.

It is not a de Polignac number, because 131020224200031 - 2³ = 131020224200023 is a prime.

It is a super-2 number, since 2×131020224200031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131020224199980 and 131020224200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020224200231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860347995 + ... + 860500268.

It is an arithmetic number, because the mean of its divisors is an integer number (11202722198640).

Almost surely, 2^{131020224200031} is an apocalyptic number.

131020224200031 is a deficient number, since it is larger than the sum of its proper divisors (48223330978209).

131020224200031 is a wasteful number, since it uses less digits than its factorization.

131020224200031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720848926.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 131020224200031 its reverse (130002422020131), we get a palindrome (261022646220162).

The spelling of 131020224200031 in words is "one hundred thirty-one trillion, twenty billion, two hundred twenty-four million, two hundred thousand, thirty-one".