100001123203 has 2 divisors, whose sum is σ = 100001123204. Its totient is φ = 100001123202.

The previous prime is 100001123191. The next prime is 100001123239. The reversal of 100001123203 is 302321100001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100001123203 - 2²¹ = 99999026051 is a prime.

It is not a weakly prime, because it can be changed into another prime (100008123203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000561601 + 50000561602.

It is an arithmetic number, because the mean of its divisors is an integer number (50000561602).

Almost surely, 2^100001123203 is an apocalyptic number.

100001123203 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001123203 is an equidigital number, since it uses as much as digits as its factorization.

100001123203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 100001123203 its reverse (302321100001), we get a palindrome (402322223204).

The spelling of 100001123203 in words is "one hundred billion, one million, one hundred twenty-three thousand, two hundred three".