20113313 has 8 divisors (see below), whose sum is σ = 22075200. Its totient is φ = 18173680.

The previous prime is 20113273. The next prime is 20113319. The reversal of 20113313 is 31331102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20113313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3638 + ... + 7311.

It is an arithmetic number, because the mean of its divisors is an integer number (2759400).

Almost surely, 2^20113313 is an apocalyptic number.

It is an amenable number.

20113313 is a deficient number, since it is larger than the sum of its proper divisors (1961887).

20113313 is a wasteful number, since it uses less digits than its factorization.

20113313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11127.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 20113313 is about 4484.7868399736. The cubic root of 20113313 is about 271.9534279044.

Adding to 20113313 its reverse (31331102), we get a palindrome (51444415).

The spelling of 20113313 in words is "twenty million, one hundred thirteen thousand, three hundred thirteen".