313123211 has 8 divisors (see below), whose sum is σ = 329779200. Its totient is φ = 296484840.

The previous prime is 313123201. The next prime is 313123229. The reversal of 313123211 is 112321313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313123211 is a prime.

It is a super-2 number, since 2×313123211² = 196092290533901042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313123211.

It is not an unprimeable number, because it can be changed into a prime (313123201) 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, 48470 + ... + 54548.

It is an arithmetic number, because the mean of its divisors is an integer number (41222400).

Almost surely, 2^313123211 is an apocalyptic number.

313123211 is a deficient number, since it is larger than the sum of its proper divisors (16655989).

313123211 is a wasteful number, since it uses less digits than its factorization.

313123211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809.

The product of its digits is 108, while the sum is 17.

The square root of 313123211 is about 17695.2878190777. The cubic root of 313123211 is about 679.0552125806.

Adding to 313123211 its reverse (112321313), we get a palindrome (425444524).

The spelling of 313123211 in words is "three hundred thirteen million, one hundred twenty-three thousand, two hundred eleven".