131330531111521 has 8 divisors (see below), whose sum is σ = 150112919436480. Its totient is φ = 112553363756688.

The previous prime is 131330531111477. The next prime is 131330531111629. The reversal of 131330531111521 is 125111135033131.

It is a happy number.

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 131330531111521 - 2⁷ = 131330531111393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131330531111321) 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, 1305188626 + ... + 1305289243.

It is an arithmetic number, because the mean of its divisors is an integer number (18764114929560).

Almost surely, 2^{131330531111521} is an apocalyptic number.

It is an amenable number.

131330531111521 is a deficient number, since it is larger than the sum of its proper divisors (18782388324959).

131330531111521 is an equidigital number, since it uses as much as digits as its factorization.

131330531111521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610485063.

The product of its (nonzero) digits is 4050, while the sum is 31.

Adding to 131330531111521 its reverse (125111135033131), we get a palindrome (256441666144652).

The spelling of 131330531111521 in words is "one hundred thirty-one trillion, three hundred thirty billion, five hundred thirty-one million, one hundred eleven thousand, five hundred twenty-one".