313020563 has 2 divisors, whose sum is σ = 313020564. Its totient is φ = 313020562.

The previous prime is 313020557. The next prime is 313020571. The reversal of 313020563 is 365020313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313020563 - 2²⁰ = 311971987 is a prime.

It is not a weakly prime, because it can be changed into another prime (313020503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156510281 + 156510282.

It is an arithmetic number, because the mean of its divisors is an integer number (156510282).

Almost surely, 2^313020563 is an apocalyptic number.

313020563 is a deficient number, since it is larger than the sum of its proper divisors (1).

313020563 is an equidigital number, since it uses as much as digits as its factorization.

313020563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 313020563 is about 17692.3871481493. The cubic root of 313020563 is about 678.9810018811.

Adding to 313020563 its reverse (365020313), we get a palindrome (678040876).

The spelling of 313020563 in words is "three hundred thirteen million, twenty thousand, five hundred sixty-three".