522123331 has 2 divisors, whose sum is σ = 522123332. Its totient is φ = 522123330.

The previous prime is 522123323. The next prime is 522123347. The reversal of 522123331 is 133321225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 522123331 - 2³ = 522123323 is a prime.

It is a super-2 number, since 2×522123331² = 545225545549071122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (522123311) 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, 261061665 + 261061666.

It is an arithmetic number, because the mean of its divisors is an integer number (261061666).

Almost surely, 2^522123331 is an apocalyptic number.

522123331 is a deficient number, since it is larger than the sum of its proper divisors (1).

522123331 is an equidigital number, since it uses as much as digits as its factorization.

522123331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 22.

The square root of 522123331 is about 22850.0181838002. The cubic root of 522123331 is about 805.2381950115.

Adding to 522123331 its reverse (133321225), we get a palindrome (655444556).

The spelling of 522123331 in words is "five hundred twenty-two million, one hundred twenty-three thousand, three hundred thirty-one".