102323121999 has 8 divisors (see below), whose sum is σ = 155920947840. Its totient is φ = 58470355416.

The previous prime is 102323121991. The next prime is 102323122021. The reversal of 102323121999 is 999121323201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102323121999 - 2³ = 102323121991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102323121999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102323121991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2436264789 + ... + 2436264830.

It is an arithmetic number, because the mean of its divisors is an integer number (19490118480).

Almost surely, 2^102323121999 is an apocalyptic number.

102323121999 is a deficient number, since it is larger than the sum of its proper divisors (53597825841).

102323121999 is an equidigital number, since it uses as much as digits as its factorization.

102323121999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872529629.

The product of its (nonzero) digits is 52488, while the sum is 42.

The spelling of 102323121999 in words is "one hundred two billion, three hundred twenty-three million, one hundred twenty-one thousand, nine hundred ninety-nine".