331425313 has 4 divisors (see below), whose sum is σ = 331461808. Its totient is φ = 331388820.

The previous prime is 331425307. The next prime is 331425323. The reversal of 331425313 is 313524133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 331425313 - 2⁹ = 331424801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331425323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7270 + ... + 26752.

It is an arithmetic number, because the mean of its divisors is an integer number (82865452).

Almost surely, 2^331425313 is an apocalyptic number.

It is an amenable number.

331425313 is a deficient number, since it is larger than the sum of its proper divisors (36495).

331425313 is a wasteful number, since it uses less digits than its factorization.

331425313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36494.

The product of its digits is 3240, while the sum is 25.

The square root of 331425313 is about 18205.0903046373. The cubic root of 331425313 is about 692.0357946724.

Adding to 331425313 its reverse (313524133), we get a palindrome (644949446).

The spelling of 331425313 in words is "three hundred thirty-one million, four hundred twenty-five thousand, three hundred thirteen".