309974716223 has 2 divisors, whose sum is σ = 309974716224. Its totient is φ = 309974716222.

The previous prime is 309974716199. The next prime is 309974716241. The reversal of 309974716223 is 322617479903.

It is a strong prime.

It is an emirp because it is prime and its reverse (322617479903) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-309974716223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (309974716423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154987358111 + 154987358112.

It is an arithmetic number, because the mean of its divisors is an integer number (154987358112).

Almost surely, 2^309974716223 is an apocalyptic number.

309974716223 is a deficient number, since it is larger than the sum of its proper divisors (1).

309974716223 is an equidigital number, since it uses as much as digits as its factorization.

309974716223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The spelling of 309974716223 in words is "three hundred nine billion, nine hundred seventy-four million, seven hundred sixteen thousand, two hundred twenty-three".