100143403 has 6 divisors (see below), whose sum is σ = 104687324. Its totient is φ = 95788836.

The previous prime is 100143397. The next prime is 100143457. The reversal of 100143403 is 304341001.

It is a de Polignac number, because none of the positive numbers 2^k-100143403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100143103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94125 + ... + 95182.

Almost surely, 2^100143403 is an apocalyptic number.

100143403 is a deficient number, since it is larger than the sum of its proper divisors (4543921).

100143403 is an equidigital number, since it uses as much as digits as its factorization.

100143403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189353 (or 189330 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 100143403 is about 10007.1675812889. The cubic root of 100143403 is about 464.3806499762.

Adding to 100143403 its reverse (304341001), we get a palindrome (404484404).

The spelling of 100143403 in words is "one hundred million, one hundred forty-three thousand, four hundred three".