100903020 has 24 divisors (see below), whose sum is σ = 282528624. Its totient is φ = 26907456.

The previous prime is 100902947. The next prime is 100903037. The reversal of 100903020 is 20309001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840799 + ... + 840918.

It is an arithmetic number, because the mean of its divisors is an integer number (11772026).

Almost surely, 2^100903020 is an apocalyptic number.

100903020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100903020 is an abundant number, since it is smaller than the sum of its proper divisors (181625604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100903020 is a wasteful number, since it uses less digits than its factorization.

100903020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681729 (or 1681727 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 100903020 is about 10045.0495270058. The cubic root of 100903020 is about 465.5518480039.

The spelling of 100903020 in words is "one hundred million, nine hundred three thousand, twenty".