521306462231 has 2 divisors, whose sum is σ = 521306462232. Its totient is φ = 521306462230.

The previous prime is 521306462219. The next prime is 521306462239. The reversal of 521306462231 is 132264603125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 521306462231 - 2³⁰ = 520232720407 is a prime.

It is a super-2 number, since 2×521306462231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 521306462191 and 521306462200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (521306462239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260653231115 + 260653231116.

It is an arithmetic number, because the mean of its divisors is an integer number (260653231116).

Almost surely, 2^521306462231 is an apocalyptic number.

521306462231 is a deficient number, since it is larger than the sum of its proper divisors (1).

521306462231 is an equidigital number, since it uses as much as digits as its factorization.

521306462231 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 521306462231 in words is "five hundred twenty-one billion, three hundred six million, four hundred sixty-two thousand, two hundred thirty-one".