313121327 has 2 divisors, whose sum is σ = 313121328. Its totient is φ = 313121326.

The previous prime is 313121321. The next prime is 313121407. The reversal of 313121327 is 723121313.

It is a weak prime.

It is an emirp because it is prime and its reverse (723121313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313121327 - 2⁸ = 313121071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313121321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156560663 + 156560664.

It is an arithmetic number, because the mean of its divisors is an integer number (156560664).

Almost surely, 2^313121327 is an apocalyptic number.

313121327 is a deficient number, since it is larger than the sum of its proper divisors (1).

313121327 is an equidigital number, since it uses as much as digits as its factorization.

313121327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 23.

The square root of 313121327 is about 17695.2345844863. The cubic root of 313121327 is about 679.0538506646.

The spelling of 313121327 in words is "three hundred thirteen million, one hundred twenty-one thousand, three hundred twenty-seven".