100112123203 has 4 divisors (see below), whose sum is σ = 100112924320. Its totient is φ = 100111322088.

The previous prime is 100112123171. The next prime is 100112123219. The reversal of 100112123203 is 302321211001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 302321211001 = 347 ⋅871242683.

It is a cyclic number.

It is not a de Polignac number, because 100112123203 - 2⁵ = 100112123171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100112129203) 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, 168168 + ... + 478021.

It is an arithmetic number, because the mean of its divisors is an integer number (25028231080).

Almost surely, 2^100112123203 is an apocalyptic number.

100112123203 is a deficient number, since it is larger than the sum of its proper divisors (801117).

100112123203 is an equidigital number, since it uses as much as digits as its factorization.

100112123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801116.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 100112123203 its reverse (302321211001), we get a palindrome (402433334204).

The spelling of 100112123203 in words is "one hundred billion, one hundred twelve million, one hundred twenty-three thousand, two hundred three".