100100103 has 4 divisors (see below), whose sum is σ = 133466808. Its totient is φ = 66733400.

The previous prime is 100100089. The next prime is 100100107. The reversal of 100100103 is 301001001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100100103 - 2¹⁷ = 99969031 is a prime.

It is a super-2 number, since 2×100100103² = 20040061241221218, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100100091 and 100100100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100100107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16683348 + ... + 16683353.

It is an arithmetic number, because the mean of its divisors is an integer number (33366702).

Almost surely, 2^100100103 is an apocalyptic number.

100100103 is a deficient number, since it is larger than the sum of its proper divisors (33366705).

100100103 is an equidigital number, since it uses as much as digits as its factorization.

100100103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33366704.

The product of its (nonzero) digits is 3, while the sum is 6.

The square root of 100100103 is about 10005.0038980502. The cubic root of 100100103 is about 464.3137106995.

Adding to 100100103 its reverse (301001001), we get a palindrome (401101104).

The spelling of 100100103 in words is "one hundred million, one hundred thousand, one hundred three".