313703213 has 2 divisors, whose sum is σ = 313703214. Its totient is φ = 313703212.

The previous prime is 313703197. The next prime is 313703219. The reversal of 313703213 is 312307313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268369924 + 45333289 = 16382^2 + 6733^2 .

It is a cyclic number.

It is not a de Polignac number, because 313703213 - 2⁴ = 313703197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313703219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156851606 + 156851607.

It is an arithmetic number, because the mean of its divisors is an integer number (156851607).

Almost surely, 2^313703213 is an apocalyptic number.

It is an amenable number.

313703213 is a deficient number, since it is larger than the sum of its proper divisors (1).

313703213 is an equidigital number, since it uses as much as digits as its factorization.

313703213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 313703213 is about 17711.6688372383. The cubic root of 313703213 is about 679.4742280967.

The spelling of 313703213 in words is "three hundred thirteen million, seven hundred three thousand, two hundred thirteen".