131521430311 has 8 divisors (see below), whose sum is σ = 137259491040. Its totient is φ = 125785014432.

The previous prime is 131521430309. The next prime is 131521430321. The reversal of 131521430311 is 113034125131.

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 131521430311 - 2¹ = 131521430309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131521430321) 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, 246396 + ... + 568993.

It is an arithmetic number, because the mean of its divisors is an integer number (17157436380).

Almost surely, 2^131521430311 is an apocalyptic number.

131521430311 is a deficient number, since it is larger than the sum of its proper divisors (5738060729).

131521430311 is an equidigital number, since it uses as much as digits as its factorization.

131521430311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822425.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 131521430311 its reverse (113034125131), we get a palindrome (244555555442).

The spelling of 131521430311 in words is "one hundred thirty-one billion, five hundred twenty-one million, four hundred thirty thousand, three hundred eleven".