131404031231 has 8 divisors (see below), whose sum is σ = 143358650064. Its totient is φ = 119450878720.

The previous prime is 131404031219. The next prime is 131404031327. The reversal of 131404031231 is 132130404131.

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 131404031231 - 2¹⁸ = 131403769087 is a prime.

It is a super-2 number, since 2×131404031231² (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 = 131404031197 and 131404031206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131404031131) 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, 174836 + ... + 541641.

It is an arithmetic number, because the mean of its divisors is an integer number (17919831258).

Almost surely, 2^131404031231 is an apocalyptic number.

131404031231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131404031231 is a deficient number, since it is larger than the sum of its proper divisors (11954618833).

131404031231 is a wasteful number, since it uses less digits than its factorization.

131404031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733161.

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

Adding to 131404031231 its reverse (132130404131), we get a palindrome (263534435362).

The spelling of 131404031231 in words is "one hundred thirty-one billion, four hundred four million, thirty-one thousand, two hundred thirty-one".