102403122123 has 4 divisors (see below), whose sum is σ = 136537496168. Its totient is φ = 68268748080.

The previous prime is 102403122109. The next prime is 102403122131. The reversal of 102403122123 is 321221304201.

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

It is not a de Polignac number, because 102403122123 - 2⁵ = 102403122091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102403122123.

It is not an unprimeable number, because it can be changed into a prime (102403122223) 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, 17067187018 + ... + 17067187023.

It is an arithmetic number, because the mean of its divisors is an integer number (34134374042).

Almost surely, 2^102403122123 is an apocalyptic number.

102403122123 is a deficient number, since it is larger than the sum of its proper divisors (34134374045).

102403122123 is an equidigital number, since it uses as much as digits as its factorization.

102403122123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34134374044.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 102403122123 its reverse (321221304201), we get a palindrome (423624426324).

The spelling of 102403122123 in words is "one hundred two billion, four hundred three million, one hundred twenty-two thousand, one hundred twenty-three".