331422523 has 2 divisors, whose sum is σ = 331422524. Its totient is φ = 331422522.

The previous prime is 331422517. The next prime is 331422541. The reversal of 331422523 is 325224133.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331422523 - 2⁹ = 331422011 is a prime.

It is not a weakly prime, because it can be changed into another prime (331422503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165711261 + 165711262.

It is an arithmetic number, because the mean of its divisors is an integer number (165711262).

Almost surely, 2^331422523 is an apocalyptic number.

331422523 is a deficient number, since it is larger than the sum of its proper divisors (1).

331422523 is an equidigital number, since it uses as much as digits as its factorization.

331422523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 25.

The square root of 331422523 is about 18205.0136775560. The cubic root of 331422523 is about 692.0338527716.

Adding to 331422523 its reverse (325224133), we get a palindrome (656646656).

The spelling of 331422523 in words is "three hundred thirty-one million, four hundred twenty-two thousand, five hundred twenty-three".