131301023231 has 32 divisors (see below), whose sum is σ = 155143632000. Its totient is φ = 111064262400.

The previous prime is 131301023219. The next prime is 131301023299. The reversal of 131301023231 is 132320103131.

It is not a de Polignac number, because 131301023231 - 2⁶ = 131301023167 is a prime.

It is a super-2 number, since 2×131301023231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131301023431) 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 31 ways as a sum of consecutive naturals, for example, 10837205 + ... + 10849313.

It is an arithmetic number, because the mean of its divisors is an integer number (4848238500).

Almost surely, 2^131301023231 is an apocalyptic number.

131301023231 is a deficient number, since it is larger than the sum of its proper divisors (23842608769).

131301023231 is a wasteful number, since it uses less digits than its factorization.

131301023231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12544 (or 12530 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131301023231 its reverse (132320103131), we get a palindrome (263621126362).

The spelling of 131301023231 in words is "one hundred thirty-one billion, three hundred one million, twenty-three thousand, two hundred thirty-one".