20113199 has 8 divisors (see below), whose sum is σ = 20648880. Its totient is φ = 19584576.

The previous prime is 20113189. The next prime is 20113213. The reversal of 20113199 is 99131102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20113199 - 2⁸ = 20112943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4277 + ... + 7649.

It is an arithmetic number, because the mean of its divisors is an integer number (2581110).

Almost surely, 2^20113199 is an apocalyptic number.

20113199 is a deficient number, since it is larger than the sum of its proper divisors (535681).

20113199 is an equidigital number, since it uses as much as digits as its factorization.

20113199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 20113199 is about 4484.7741303214. The cubic root of 20113199 is about 271.9529141029.

The spelling of 20113199 in words is "twenty million, one hundred thirteen thousand, one hundred ninety-nine".