313234213 has 2 divisors, whose sum is σ = 313234214. Its totient is φ = 313234212.

The previous prime is 313234189. The next prime is 313234223. The reversal of 313234213 is 312432313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309161889 + 4072324 = 17583^2 + 2018^2 .

It is an emirp because it is prime and its reverse (312432313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313234213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313234223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156617106 + 156617107.

It is an arithmetic number, because the mean of its divisors is an integer number (156617107).

Almost surely, 2^313234213 is an apocalyptic number.

It is an amenable number.

313234213 is a deficient number, since it is larger than the sum of its proper divisors (1).

313234213 is an equidigital number, since it uses as much as digits as its factorization.

313234213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 22.

The square root of 313234213 is about 17698.4240258843. The cubic root of 313234213 is about 679.1354446627.

Adding to 313234213 its reverse (312432313), we get a palindrome (625666526).

The spelling of 313234213 in words is "three hundred thirteen million, two hundred thirty-four thousand, two hundred thirteen".