131000331400421 has 48 divisors (see below), whose sum is σ = 161224771112064. Its totient is φ = 105911162413056.

The previous prime is 131000331400387. The next prime is 131000331400483. The reversal of 131000331400421 is 124004133000131.

It is not a de Polignac number, because 131000331400421 - 2³⁸ = 130725453493477 is a prime.

It is a super-2 number, since 2×131000331400421² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000333400421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410619650 + ... + 410938556.

It is an arithmetic number, because the mean of its divisors is an integer number (3358849398168).

Almost surely, 2^{131000331400421} is an apocalyptic number.

It is an amenable number.

131000331400421 is a deficient number, since it is larger than the sum of its proper divisors (30224439711643).

131000331400421 is a wasteful number, since it uses less digits than its factorization.

131000331400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324010 (or 324003 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131000331400421 its reverse (124004133000131), we get a palindrome (255004464400552).

The spelling of 131000331400421 in words is "one hundred thirty-one trillion, three hundred thirty-one million, four hundred thousand, four hundred twenty-one".