100313133 has 4 divisors (see below), whose sum is σ = 133750848. Its totient is φ = 66875420.

The previous prime is 100313113. The next prime is 100313149. The reversal of 100313133 is 331313001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100313133 - 2¹⁰ = 100312109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100313113) 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, 16718853 + ... + 16718858.

It is an arithmetic number, because the mean of its divisors is an integer number (33437712).

Almost surely, 2^100313133 is an apocalyptic number.

It is an amenable number.

100313133 is a deficient number, since it is larger than the sum of its proper divisors (33437715).

100313133 is an equidigital number, since it uses as much as digits as its factorization.

100313133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33437714.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 100313133 is about 10015.6444126177. The cubic root of 100313133 is about 464.6428567642.

Adding to 100313133 its reverse (331313001), we get a palindrome (431626134).

The spelling of 100313133 in words is "one hundred million, three hundred thirteen thousand, one hundred thirty-three".