313220023 has 4 divisors (see below), whose sum is σ = 315095760. Its totient is φ = 311344288.

The previous prime is 313220021. The next prime is 313220027. The reversal of 313220023 is 320022313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313220023 - 2¹ = 313220021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313219979 and 313220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313220021) 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, 937618 + ... + 937951.

It is an arithmetic number, because the mean of its divisors is an integer number (78773940).

Almost surely, 2^313220023 is an apocalyptic number.

313220023 is a deficient number, since it is larger than the sum of its proper divisors (1875737).

313220023 is a wasteful number, since it uses less digits than its factorization.

313220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875736.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 313220023 is about 17698.0231381926. The cubic root of 313220023 is about 679.1251892084.

Adding to 313220023 its reverse (320022313), we get a palindrome (633242336).

The spelling of 313220023 in words is "three hundred thirteen million, two hundred twenty thousand, twenty-three".