313220423 has 2 divisors, whose sum is σ = 313220424. Its totient is φ = 313220422.

The previous prime is 313220419. The next prime is 313220431. The reversal of 313220423 is 324022313.

It is a weak prime.

It is an emirp because it is prime and its reverse (324022313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313220423 - 2² = 313220419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313220395 and 313220404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313220483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156610211 + 156610212.

It is an arithmetic number, because the mean of its divisors is an integer number (156610212).

Almost surely, 2^313220423 is an apocalyptic number.

313220423 is a deficient number, since it is larger than the sum of its proper divisors (1).

313220423 is an equidigital number, since it uses as much as digits as its factorization.

313220423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 313220423 is about 17698.0344388861. The cubic root of 313220423 is about 679.1254783023.

Adding to 313220423 its reverse (324022313), we get a palindrome (637242736).

The spelling of 313220423 in words is "three hundred thirteen million, two hundred twenty thousand, four hundred twenty-three".