311354321 has 4 divisors (see below), whose sum is σ = 311424000. Its totient is φ = 311284644.

The previous prime is 311354317. The next prime is 311354333. The reversal of 311354321 is 123453113.

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.

It is a cyclic number.

It is not a de Polignac number, because 311354321 - 2² = 311354317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311354221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27641 + ... + 37238.

It is an arithmetic number, because the mean of its divisors is an integer number (77856000).

Almost surely, 2^311354321 is an apocalyptic number.

It is an amenable number.

311354321 is a deficient number, since it is larger than the sum of its proper divisors (69679).

311354321 is an equidigital number, since it uses as much as digits as its factorization.

311354321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69678.

The product of its digits is 1080, while the sum is 23.

The square root of 311354321 is about 17645.2350791935. The cubic root of 311354321 is about 677.7740949654.

The spelling of 311354321 in words is "three hundred eleven million, three hundred fifty-four thousand, three hundred twenty-one".