304323211217 has 2 divisors, whose sum is σ = 304323211218. Its totient is φ = 304323211216.

The previous prime is 304323211177. The next prime is 304323211277. The reversal of 304323211217 is 712112323403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247960177936 + 56363033281 = 497956^2 + 237409^2 .

It is a cyclic number.

It is not a de Polignac number, because 304323211217 - 2²² = 304319016913 is a prime.

It is a super-2 number, since 2×304323211217² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 304323211217.

It is not a weakly prime, because it can be changed into another prime (304323211277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152161605608 + 152161605609.

It is an arithmetic number, because the mean of its divisors is an integer number (152161605609).

Almost surely, 2^304323211217 is an apocalyptic number.

It is an amenable number.

304323211217 is a deficient number, since it is larger than the sum of its proper divisors (1).

304323211217 is an equidigital number, since it uses as much as digits as its factorization.

304323211217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The spelling of 304323211217 in words is "three hundred four billion, three hundred twenty-three million, two hundred eleven thousand, two hundred seventeen".