100012103 has 2 divisors, whose sum is σ = 100012104. Its totient is φ = 100012102.

The previous prime is 100012069. The next prime is 100012111. The reversal of 100012103 is 301210001.

It is an a-pointer prime, because the next prime (100012111) can be obtained adding 100012103 to its sum of digits (8).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100012103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100012153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50006051 + 50006052.

It is an arithmetic number, because the mean of its divisors is an integer number (50006052).

Almost surely, 2^100012103 is an apocalyptic number.

100012103 is a deficient number, since it is larger than the sum of its proper divisors (1).

100012103 is an equidigital number, since it uses as much as digits as its factorization.

100012103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 100012103 is about 10000.6051316908. The cubic root of 100012103 is about 464.1776083224.

Adding to 100012103 its reverse (301210001), we get a palindrome (401222104).

The spelling of 100012103 in words is "one hundred million, twelve thousand, one hundred three".