131402321031 has 8 divisors (see below), whose sum is σ = 175225829104. Its totient is φ = 87590180160.

The previous prime is 131402321023. The next prime is 131402321129. The reversal of 131402321031 is 130123204131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131402321031 - 2³ = 131402321023 is a prime.

It is a super-2 number, since 2×131402321031² (a number of 23 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 = 131402320989 and 131402321007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131402321231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2814790 + ... + 2861091.

It is an arithmetic number, because the mean of its divisors is an integer number (21903228638).

Almost surely, 2^131402321031 is an apocalyptic number.

131402321031 is a deficient number, since it is larger than the sum of its proper divisors (43823508073).

131402321031 is an equidigital number, since it uses as much as digits as its factorization.

131402321031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683601.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131402321031 its reverse (130123204131), we get a palindrome (261525525162).

The spelling of 131402321031 in words is "one hundred thirty-one billion, four hundred two million, three hundred twenty-one thousand, thirty-one".