323220299999 has 4 divisors (see below), whose sum is σ = 323302277136. Its totient is φ = 323138322864.

The previous prime is 323220299989. The next prime is 323220300049. The reversal of 323220299999 is 999992022323.

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 323220299999 - 2³⁶ = 254500823263 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 (323220299929) 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, 40982654 + ... + 40990539.

It is an arithmetic number, because the mean of its divisors is an integer number (80825569284).

Almost surely, 2^323220299999 is an apocalyptic number.

323220299999 is a deficient number, since it is larger than the sum of its proper divisors (81977137).

323220299999 is an equidigital number, since it uses as much as digits as its factorization.

323220299999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81977136.

The product of its (nonzero) digits is 8503056, while the sum is 59.

The spelling of 323220299999 in words is "three hundred twenty-three billion, two hundred twenty million, two hundred ninety-nine thousand, nine hundred ninety-nine".