313225311 has 8 divisors (see below), whose sum is σ = 477295744. Its totient is φ = 178985880.

The previous prime is 313225303. The next prime is 313225321. The reversal of 313225311 is 113522313.

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

It is not a de Polignac number, because 313225311 - 2³ = 313225303 is a prime.

It is a super-2 number, since 2×313225311² = 196220190902093442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 14915491 = 313225311 / (3 + 1 + 3 + 2 + 2 + 5 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313225321) 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, 7457725 + ... + 7457766.

It is an arithmetic number, because the mean of its divisors is an integer number (59661968).

Almost surely, 2^313225311 is an apocalyptic number.

313225311 is a deficient number, since it is larger than the sum of its proper divisors (164070433).

313225311 is a wasteful number, since it uses less digits than its factorization.

313225311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14915501.

The product of its digits is 540, while the sum is 21.

The square root of 313225311 is about 17698.1725327786. The cubic root of 313225311 is about 679.1290110094.

Adding to 313225311 its reverse (113522313), we get a palindrome (426747624).

The spelling of 313225311 in words is "three hundred thirteen million, two hundred twenty-five thousand, three hundred eleven".