131435123231 has 8 divisors (see below), whose sum is σ = 131603075664. Its totient is φ = 131267223360.

The previous prime is 131435123221. The next prime is 131435123251. The reversal of 131435123231 is 132321534131.

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

It is a cyclic number.

It is not a de Polignac number, because 131435123231 - 2²² = 131430928927 is a prime.

It is a super-2 number, since 2×131435123231² (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 = 131435123194 and 131435123203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131435123221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7865321 + ... + 7882013.

It is an arithmetic number, because the mean of its divisors is an integer number (16450384458).

Almost surely, 2^131435123231 is an apocalyptic number.

131435123231 is a deficient number, since it is larger than the sum of its proper divisors (167952433).

131435123231 is an equidigital number, since it uses as much as digits as its factorization.

131435123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26281.

The product of its digits is 6480, while the sum is 29.

Adding to 131435123231 its reverse (132321534131), we get a palindrome (263756657362).

The spelling of 131435123231 in words is "one hundred thirty-one billion, four hundred thirty-five million, one hundred twenty-three thousand, two hundred thirty-one".