521241242125331 has 16 divisors (see below), whose sum is σ = 642713500943808. Its totient is φ = 411648341328000.

The previous prime is 521241242125319. The next prime is 521241242125333. The reversal of 521241242125331 is 133521242142125.

It is not a de Polignac number, because 521241242125331 - 2³⁰ = 521240168383507 is a prime.

It is a super-2 number, since 2×521241242125331² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (521241242125333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5293782320 + ... + 5293880781.

It is an arithmetic number, because the mean of its divisors is an integer number (40169593808988).

Almost surely, 2^{521241242125331} is an apocalyptic number.

521241242125331 is a deficient number, since it is larger than the sum of its proper divisors (121472258818477).

521241242125331 is a wasteful number, since it uses less digits than its factorization.

521241242125331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10587663662.

The product of its digits is 115200, while the sum is 38.

Adding to 521241242125331 its reverse (133521242142125), we get a palindrome (654762484267456).

The spelling of 521241242125331 in words is "five hundred twenty-one trillion, two hundred forty-one billion, two hundred forty-two million, one hundred twenty-five thousand, three hundred thirty-one".