313032321 has 24 divisors (see below), whose sum is σ = 530721984. Its totient is φ = 174039840.

The previous prime is 313032311. The next prime is 313032337. The reversal of 313032321 is 123230313.

313032321 is a `hidden beast` number, since 313 + 0 + 32 + 321 = 666.

It is not a de Polignac number, because 313032321 - 2⁷ = 313032193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313032294 and 313032303.

It is not an unprimeable number, because it can be changed into a prime (313032301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64815 + ... + 69476.

It is an arithmetic number, because the mean of its divisors is an integer number (22113416).

Almost surely, 2^313032321 is an apocalyptic number.

It is an amenable number.

313032321 is a deficient number, since it is larger than the sum of its proper divisors (217689663).

313032321 is a wasteful number, since it uses less digits than its factorization.

313032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134341 (or 134338 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 313032321 is about 17692.7194348410. The cubic root of 313032321 is about 678.9895033020.

Adding to 313032321 its reverse (123230313), we get a palindrome (436262634).

The spelling of 313032321 in words is "three hundred thirteen million, thirty-two thousand, three hundred twenty-one".