123100123203 has 24 divisors (see below), whose sum is σ = 178818831360. Its totient is φ = 81602745840.

The previous prime is 123100123199. The next prime is 123100123219. The reversal of 123100123203 is 302321001321.

It is not a de Polignac number, because 123100123203 - 2² = 123100123199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123100123303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1427238 + ... + 1511028.

It is an arithmetic number, because the mean of its divisors is an integer number (7450784640).

Almost surely, 2^123100123203 is an apocalyptic number.

123100123203 is a deficient number, since it is larger than the sum of its proper divisors (55718708157).

123100123203 is a wasteful number, since it uses less digits than its factorization.

123100123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84719 (or 84716 counting only the distinct ones).

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

Adding to 123100123203 its reverse (302321001321), we get a palindrome (425421124524).

The spelling of 123100123203 in words is "one hundred twenty-three billion, one hundred million, one hundred twenty-three thousand, two hundred three".