100106203 has 2 divisors, whose sum is σ = 100106204. Its totient is φ = 100106202.

The previous prime is 100106191. The next prime is 100106243. The reversal of 100106203 is 302601001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100106203 is a prime.

It is not a weakly prime, because it can be changed into another prime (100106243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50053101 + 50053102.

It is an arithmetic number, because the mean of its divisors is an integer number (50053102).

Almost surely, 2^100106203 is an apocalyptic number.

100106203 is a deficient number, since it is larger than the sum of its proper divisors (1).

100106203 is an equidigital number, since it uses as much as digits as its factorization.

100106203 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.

The square root of 100106203 is about 10005.3087408635. The cubic root of 100106203 is about 464.3231421121.

Adding to 100106203 its reverse (302601001), we get a palindrome (402707204).

The spelling of 100106203 in words is "one hundred million, one hundred six thousand, two hundred three".