100111013 has 4 divisors (see below), whose sum is σ = 100540908. Its totient is φ = 99681120.

The previous prime is 100111007. The next prime is 100111043. The reversal of 100111013 is 310111001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45454564 + 54656449 = 6742^2 + 7393^2 .

It is a cyclic number.

It is not a de Polignac number, because 100111013 - 2⁶ = 100110949 is a prime.

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 (100111003) 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, 214598 + ... + 215063.

It is an arithmetic number, because the mean of its divisors is an integer number (25135227).

Almost surely, 2^100111013 is an apocalyptic number.

It is an amenable number.

100111013 is a deficient number, since it is larger than the sum of its proper divisors (429895).

100111013 is an equidigital number, since it uses as much as digits as its factorization.

100111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429894.

The product of its (nonzero) digits is 3, while the sum is 8.

The square root of 100111013 is about 10005.5491103687. The cubic root of 100111013 is about 464.3305787426.

Adding to 100111013 its reverse (310111001), we get a palindrome (410222014).

The spelling of 100111013 in words is "one hundred million, one hundred eleven thousand, thirteen".