100343403 has 6 divisors (see below), whose sum is σ = 144940484. Its totient is φ = 66895596.

The previous prime is 100343387. The next prime is 100343413. The reversal of 100343403 is 304343001.

It is not a de Polignac number, because 100343403 - 2⁴ = 100343387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100343413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5574625 + ... + 5574642.

Almost surely, 2^100343403 is an apocalyptic number.

100343403 is a deficient number, since it is larger than the sum of its proper divisors (44597081).

100343403 is a wasteful number, since it uses less digits than its factorization.

100343403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11149273 (or 11149270 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 100343403 is about 10017.1554345533. The cubic root of 100343403 is about 464.6895881821.

Adding to 100343403 its reverse (304343001), we get a palindrome (404686404).

The spelling of 100343403 in words is "one hundred million, three hundred forty-three thousand, four hundred three".