100103109 has 4 divisors (see below), whose sum is σ = 133470816. Its totient is φ = 66735404.

The previous prime is 100103071. The next prime is 100103111. The reversal of 100103109 is 901301001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 901301001 = 3 ⋅300433667.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100103109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100103119) 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, 16683849 + ... + 16683854.

It is an arithmetic number, because the mean of its divisors is an integer number (33367704).

Almost surely, 2^100103109 is an apocalyptic number.

It is an amenable number.

100103109 is a deficient number, since it is larger than the sum of its proper divisors (33367707).

100103109 is an equidigital number, since it uses as much as digits as its factorization.

100103109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33367706.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 100103109 is about 10005.1541217514. The cubic root of 100103109 is about 464.3183584238.

The spelling of 100103109 in words is "one hundred million, one hundred three thousand, one hundred nine".