310129213 has 2 divisors, whose sum is σ = 310129214. Its totient is φ = 310129212.

The previous prime is 310129199. The next prime is 310129223. The reversal of 310129213 is 312921013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232654009 + 77475204 = 15253^2 + 8802^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-310129213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (310129223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155064606 + 155064607.

It is an arithmetic number, because the mean of its divisors is an integer number (155064607).

Almost surely, 2^310129213 is an apocalyptic number.

It is an amenable number.

310129213 is a deficient number, since it is larger than the sum of its proper divisors (1).

310129213 is an equidigital number, since it uses as much as digits as its factorization.

310129213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 310129213 is about 17610.4858819966. The cubic root of 310129213 is about 676.8839644707.

The spelling of 310129213 in words is "three hundred ten million, one hundred twenty-nine thousand, two hundred thirteen".