131012223033402 has 24 divisors (see below), whose sum is σ = 300557452842036. Its totient is φ = 41101873892736.

The previous prime is 131012223033401. The next prime is 131012223033449. The reversal of 131012223033402 is 204330322210131.

131012223033402 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 1 + 2 + 223 + 0 + 33 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 130351336956801 + 660886076601 = 11417151^2 + 812949^2 .

It is not an unprimeable number, because it can be changed into a prime (131012223033401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214072259553 + ... + 214072260164.

Almost surely, 2^{131012223033402} is an apocalyptic number.

131012223033402 is an abundant number, since it is smaller than the sum of its proper divisors (169545229808634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131012223033402 is a wasteful number, since it uses less digits than its factorization.

131012223033402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428144519742 (or 428144519739 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 131012223033402 its reverse (204330322210131), we get a palindrome (335342545243533).

The spelling of 131012223033402 in words is "one hundred thirty-one trillion, twelve billion, two hundred twenty-three million, thirty-three thousand, four hundred two".