202100103 has 40 divisors (see below), whose sum is σ = 319068288. Its totient is φ = 127225296.

The previous prime is 202100069. The next prime is 202100123. The reversal of 202100103 is 301001202.

It is a happy number.

202100103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202100103 - 2⁹ = 202099591 is a prime.

It is a super-2 number, since 2×202100103² = 81688903265221218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202100123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 153976 + ... + 155282.

Almost surely, 2^202100103 is an apocalyptic number.

202100103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

202100103 is a deficient number, since it is larger than the sum of its proper divisors (116968185).

202100103 is a wasteful number, since it uses less digits than its factorization.

202100103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 202100103 is about 14216.1915786191. The cubic root of 202100103 is about 586.8433374093.

Adding to 202100103 its reverse (301001202), we get a palindrome (503101305).

The spelling of 202100103 in words is "two hundred two million, one hundred thousand, one hundred three".