313321163 has 2 divisors, whose sum is σ = 313321164. Its totient is φ = 313321162.

The previous prime is 313321147. The next prime is 313321171. The reversal of 313321163 is 361123313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313321163 - 2⁴ = 313321147 is a prime.

It is not a weakly prime, because it can be changed into another prime (313321363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156660581 + 156660582.

It is an arithmetic number, because the mean of its divisors is an integer number (156660582).

Almost surely, 2^313321163 is an apocalyptic number.

313321163 is a deficient number, since it is larger than the sum of its proper divisors (1).

313321163 is an equidigital number, since it uses as much as digits as its factorization.

313321163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 23.

The square root of 313321163 is about 17700.8802888444. The cubic root of 313321163 is about 679.1982787566.

Adding to 313321163 its reverse (361123313), we get a palindrome (674444476).

The spelling of 313321163 in words is "three hundred thirteen million, three hundred twenty-one thousand, one hundred sixty-three".