313220223 has 48 divisors (see below), whose sum is σ = 498224160. Its totient is φ = 194429952.

The previous prime is 313220209. The next prime is 313220231. The reversal of 313220223 is 322022313.

It is a happy number.

It is not a de Polignac number, because 313220223 - 2⁵ = 313220191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313220196 and 313220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313220273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1068865 + ... + 1069157.

It is an arithmetic number, because the mean of its divisors is an integer number (10379670).

Almost surely, 2^313220223 is an apocalyptic number.

313220223 is a deficient number, since it is larger than the sum of its proper divisors (185003937).

313220223 is a wasteful number, since it uses less digits than its factorization.

313220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 313220223 is about 17698.0287885403. The cubic root of 313220223 is about 679.1253337554.

Adding to 313220223 its reverse (322022313), we get a palindrome (635242536).

The spelling of 313220223 in words is "three hundred thirteen million, two hundred twenty thousand, two hundred twenty-three".