312343213 has 16 divisors (see below), whose sum is σ = 390167680. Its totient is φ = 243435456.

The previous prime is 312343211. The next prime is 312343231.

312343213 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 312343213 - 2¹ = 312343211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312343211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19518 + ... + 31711.

It is an arithmetic number, because the mean of its divisors is an integer number (24385480).

Almost surely, 2^312343213 is an apocalyptic number.

It is an amenable number.

312343213 is a deficient number, since it is larger than the sum of its proper divisors (77824467).

312343213 is a wasteful number, since it uses less digits than its factorization.

312343213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51316.

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

The square root of 312343213 is about 17673.2343672572. The cubic root of 312343213 is about 678.4908957249.

The spelling of 312343213 in words is "three hundred twelve million, three hundred forty-three thousand, two hundred thirteen".