123423516203 has 16 divisors (see below), whose sum is σ = 139927378080. Its totient is φ = 107922253824.

The previous prime is 123423516199. The next prime is 123423516239. The reversal of 123423516203 is 302615324321.

It is a cyclic number.

It is not a de Polignac number, because 123423516203 - 2² = 123423516199 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 123423516203.

It is not an unprimeable number, because it can be changed into a prime (123423516703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3349025 + ... + 3385677.

It is an arithmetic number, because the mean of its divisors is an integer number (8745461130).

Almost surely, 2^123423516203 is an apocalyptic number.

123423516203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123423516203 is a deficient number, since it is larger than the sum of its proper divisors (16503861877).

123423516203 is a wasteful number, since it uses less digits than its factorization.

123423516203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50318.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 123423516203 in words is "one hundred twenty-three billion, four hundred twenty-three million, five hundred sixteen thousand, two hundred three".