521152051022231 has 4 divisors (see below), whose sum is σ = 521155433150352. Its totient is φ = 521148668894112.

The previous prime is 521152051022227. The next prime is 521152051022263. The reversal of 521152051022231 is 132220150251125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 521152051022231 - 2² = 521152051022227 is a prime.

It is a super-2 number, since 2×521152051022231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521152051012231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690832915 + ... + 1691141108.

It is an arithmetic number, because the mean of its divisors is an integer number (130288858287588).

Almost surely, 2^{521152051022231} is an apocalyptic number.

521152051022231 is a deficient number, since it is larger than the sum of its proper divisors (3382128121).

521152051022231 is a wasteful number, since it uses less digits than its factorization.

521152051022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382128120.

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 521152051022231 in words is "five hundred twenty-one trillion, one hundred fifty-two billion, fifty-one million, twenty-two thousand, two hundred thirty-one".