313211005 has 8 divisors (see below), whose sum is σ = 378104832. Its totient is φ = 249067728.

The previous prime is 313210981. The next prime is 313211053. The reversal of 313211005 is 500112313.

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

It is a cyclic number.

It is not a de Polignac number, because 313211005 - 2⁹ = 313210493 is a prime.

It is a super-2 number, since 2×313211005² = 196202267306220050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313211005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186717 + ... + 188386.

It is an arithmetic number, because the mean of its divisors is an integer number (47263104).

Almost surely, 2^313211005 is an apocalyptic number.

It is an amenable number.

313211005 is a deficient number, since it is larger than the sum of its proper divisors (64893827).

313211005 is a wasteful number, since it uses less digits than its factorization.

313211005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375275.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 313211005 is about 17697.7683621410. The cubic root of 313211005 is about 679.1186715219.

Adding to 313211005 its reverse (500112313), we get a palindrome (813323318).

The spelling of 313211005 in words is "three hundred thirteen million, two hundred eleven thousand, five".