100123123203 has 12 divisors (see below), whose sum is σ = 145430237160. Its totient is φ = 66375849696.

The previous prime is 100123123189. The next prime is 100123123213. The reversal of 100123123203 is 302321321001.

It is not a de Polignac number, because 100123123203 - 2¹³ = 100123115011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100123123213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31073226 + ... + 31076447.

It is an arithmetic number, because the mean of its divisors is an integer number (12119186430).

Almost surely, 2^100123123203 is an apocalyptic number.

100123123203 is a deficient number, since it is larger than the sum of its proper divisors (45307113957).

100123123203 is a wasteful number, since it uses less digits than its factorization.

100123123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62149858 (or 62149855 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 100123123203 its reverse (302321321001), we get a palindrome (402444444204).

The spelling of 100123123203 in words is "one hundred billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred three".