313424321 has 8 divisors (see below), whose sum is σ = 358471104. Its totient is φ = 268445520.

The previous prime is 313424303. The next prime is 313424329. The reversal of 313424321 is 123424313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-313424321 is a prime.

It is a super-2 number, since 2×313424321² = 196469609988622082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313424329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6695 + ... + 25916.

It is an arithmetic number, because the mean of its divisors is an integer number (44808888).

Almost surely, 2^313424321 is an apocalyptic number.

It is an amenable number.

313424321 is a deficient number, since it is larger than the sum of its proper divisors (45046783).

313424321 is a wasteful number, since it uses less digits than its factorization.

313424321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33991.

The product of its digits is 1728, while the sum is 23.

The square root of 313424321 is about 17703.7939719146. The cubic root of 313424321 is about 679.2728104260.

Adding to 313424321 its reverse (123424313), we get a palindrome (436848634).

The spelling of 313424321 in words is "three hundred thirteen million, four hundred twenty-four thousand, three hundred twenty-one".