40100103 has 28 divisors (see below), whose sum is σ = 61094328. Its totient is φ = 26302320.

The previous prime is 40100087. The next prime is 40100113. The reversal of 40100103 is 30100104.

It is not a de Polignac number, because 40100103 - 2⁴ = 40100087 is a prime.

It is a super-2 number, since 2×40100103² = 3216036521221218, 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 (40100113) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 48433 + ... + 49253.

Almost surely, 2^40100103 is an apocalyptic number.

40100103 is a deficient number, since it is larger than the sum of its proper divisors (20994225).

40100103 is an frugal number, since it uses more digits than its factorization.

40100103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 891 counting only the distinct ones).

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

The square root of 40100103 is about 6332.4642122952. The cubic root of 40100103 is about 342.2802412165.

Adding to 40100103 its reverse (30100104), we get a palindrome (70200207).

Subtracting from 40100103 its reverse (30100104), we obtain a palindrome (9999999).

The spelling of 40100103 in words is "forty million, one hundred thousand, one hundred three".