520326241631 has 16 divisors (see below), whose sum is σ = 598832033280. Its totient is φ = 442867482720.

The previous prime is 520326241627. The next prime is 520326241681. The reversal of 520326241631 is 136142623025.

It is a cyclic number.

It is not a de Polignac number, because 520326241631 - 2² = 520326241627 is a prime.

It is a super-2 number, since 2×520326241631² (a number of 24 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 = 520326241591 and 520326241600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520326241681) 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, 1561496 + ... + 1865186.

It is an arithmetic number, because the mean of its divisors is an integer number (37427002080).

Almost surely, 2^520326241631 is an apocalyptic number.

520326241631 is a deficient number, since it is larger than the sum of its proper divisors (78505791649).

520326241631 is a wasteful number, since it uses less digits than its factorization.

520326241631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305414.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 520326241631 its reverse (136142623025), we get a palindrome (656468864656).

The spelling of 520326241631 in words is "five hundred twenty billion, three hundred twenty-six million, two hundred forty-one thousand, six hundred thirty-one".