345223353302999 has 4 divisors (see below), whose sum is σ = 365530609379664. Its totient is φ = 324916097226336.

The previous prime is 345223353302981. The next prime is 345223353303007. The reversal of 345223353302999 is 999203353322543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345223353302999 - 2³² = 345219058335703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345223353302699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10153628038307 + ... + 10153628038340.

It is an arithmetic number, because the mean of its divisors is an integer number (91382652344916).

Almost surely, 2^{345223353302999} is an apocalyptic number.

345223353302999 is a deficient number, since it is larger than the sum of its proper divisors (20307256076665).

345223353302999 is a wasteful number, since it uses less digits than its factorization.

345223353302999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20307256076664.

The product of its (nonzero) digits is 141717600, while the sum is 62.

The spelling of 345223353302999 in words is "three hundred forty-five trillion, two hundred twenty-three billion, three hundred fifty-three million, three hundred two thousand, nine hundred ninety-nine".