123321022999 has 4 divisors (see below), whose sum is σ = 123324616800. Its totient is φ = 123317429200.

The previous prime is 123321022997. The next prime is 123321023047. The reversal of 123321022999 is 999220123321.

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 123321022999 - 2¹ = 123321022997 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 (123321022997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1744927 + ... + 1814224.

It is an arithmetic number, because the mean of its divisors is an integer number (30831154200).

Almost surely, 2^123321022999 is an apocalyptic number.

123321022999 is a deficient number, since it is larger than the sum of its proper divisors (3593801).

123321022999 is an equidigital number, since it uses as much as digits as its factorization.

123321022999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593800.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 123321022999 in words is "one hundred twenty-three billion, three hundred twenty-one million, twenty-two thousand, nine hundred ninety-nine".