100040103 has 10 divisors (see below), whose sum is σ = 149442744. Its totient is φ = 66693348.

The previous prime is 100040099. The next prime is 100040113. The reversal of 100040103 is 301040001.

It is not a de Polignac number, because 100040103 - 2² = 100040099 is a prime.

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 (100040113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 617451 + ... + 617612.

Almost surely, 2^100040103 is an apocalyptic number.

100040103 is a deficient number, since it is larger than the sum of its proper divisors (49402641).

100040103 is an equidigital number, since it uses as much as digits as its factorization.

100040103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235075 (or 1235066 counting only the distinct ones).

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

The square root of 100040103 is about 10002.0049490090. The cubic root of 100040103 is about 464.2209222812.

Adding to 100040103 its reverse (301040001), we get a palindrome (401080104).

The spelling of 100040103 in words is "one hundred million, forty thousand, one hundred three".