100112403 has 4 divisors (see below), whose sum is σ = 133483208. Its totient is φ = 66741600.

The previous prime is 100112401. The next prime is 100112431. The reversal of 100112403 is 304211001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304211001 = 3 ⋅101403667.

It is not a de Polignac number, because 100112403 - 2¹ = 100112401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100112401) 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, 16685398 + ... + 16685403.

It is an arithmetic number, because the mean of its divisors is an integer number (33370802).

Almost surely, 2^100112403 is an apocalyptic number.

100112403 is a deficient number, since it is larger than the sum of its proper divisors (33370805).

100112403 is an equidigital number, since it uses as much as digits as its factorization.

100112403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33370804.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100112403 is about 10005.6185715827. The cubic root of 100112403 is about 464.3327277453.

Adding to 100112403 its reverse (304211001), we get a palindrome (404323404).

The spelling of 100112403 in words is "one hundred million, one hundred twelve thousand, four hundred three".