321313233 has 24 divisors (see below), whose sum is σ = 450424800. Its totient is φ = 203677440.

The previous prime is 321313207. The next prime is 321313241. The reversal of 321313233 is 332313123.

It is not a de Polignac number, because 321313233 - 2¹² = 321309137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321313253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169153 + ... + 171041.

It is an arithmetic number, because the mean of its divisors is an integer number (18767700).

Almost surely, 2^321313233 is an apocalyptic number.

It is an amenable number.

321313233 is a deficient number, since it is larger than the sum of its proper divisors (129111567).

321313233 is a wasteful number, since it uses less digits than its factorization.

321313233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013 (or 1982 counting only the distinct ones).

The product of its digits is 972, while the sum is 21.

The square root of 321313233 is about 17925.2122163170. The cubic root of 321313233 is about 684.9247669875.

Adding to 321313233 its reverse (332313123), we get a palindrome (653626356).

The spelling of 321313233 in words is "three hundred twenty-one million, three hundred thirteen thousand, two hundred thirty-three".