306340212473 has 2 divisors, whose sum is σ = 306340212474. Its totient is φ = 306340212472.

The previous prime is 306340212461. The next prime is 306340212499. The reversal of 306340212473 is 374212043603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198195916864 + 108144295609 = 445192^2 + 328853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-306340212473 is a prime.

It is not a weakly prime, because it can be changed into another prime (306340212413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153170106236 + 153170106237.

It is an arithmetic number, because the mean of its divisors is an integer number (153170106237).

Almost surely, 2^306340212473 is an apocalyptic number.

It is an amenable number.

306340212473 is a deficient number, since it is larger than the sum of its proper divisors (1).

306340212473 is an equidigital number, since it uses as much as digits as its factorization.

306340212473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 35.

The spelling of 306340212473 in words is "three hundred six billion, three hundred forty million, two hundred twelve thousand, four hundred seventy-three".