100344213 has 6 divisors (see below), whose sum is σ = 144941654. Its totient is φ = 66896136.

The previous prime is 100344173. The next prime is 100344227. The reversal of 100344213 is 312443001.

It can be written as a sum of positive squares in only one way, i.e., 90497169 + 9847044 = 9513^2 + 3138^2 .

It is not a de Polignac number, because 100344213 - 2⁹ = 100343701 is a prime.

It is a super-2 number, since 2×100344213² = 20137922165178738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100344253) 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, 5574670 + ... + 5574687.

Almost surely, 2^100344213 is an apocalyptic number.

It is an amenable number.

100344213 is a deficient number, since it is larger than the sum of its proper divisors (44597441).

100344213 is a wasteful number, since it uses less digits than its factorization.

100344213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11149363 (or 11149360 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 100344213 is about 10017.1958651112. The cubic root of 100344213 is about 464.6908385468.

Adding to 100344213 its reverse (312443001), we get a palindrome (412787214).

The spelling of 100344213 in words is "one hundred million, three hundred forty-four thousand, two hundred thirteen".