131431312442 has 8 divisors (see below), whose sum is σ = 197296213332. Its totient is φ = 65665908000.

The previous prime is 131431312433. The next prime is 131431312451. The reversal of 131431312442 is 244213134131.

It is an interprime number because it is at equal distance from previous prime (131431312433) and next prime (131431312451).

It can be written as a sum of positive squares in 2 ways, for example, as 120929367001 + 10501945441 = 347749^2 + 102479^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24870809 + ... + 24876092.

Almost surely, 2^131431312442 is an apocalyptic number.

131431312442 is a deficient number, since it is larger than the sum of its proper divisors (65864900890).

131431312442 is a wasteful number, since it uses less digits than its factorization.

131431312442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49748224.

The product of its digits is 6912, while the sum is 29.

Adding to 131431312442 its reverse (244213134131), we get a palindrome (375644446573).

The spelling of 131431312442 in words is "one hundred thirty-one billion, four hundred thirty-one million, three hundred twelve thousand, four hundred forty-two".