20104113 has 8 divisors (see below), whose sum is σ = 26848800. Its totient is φ = 13381088.

The previous prime is 20104067. The next prime is 20104129. The reversal of 20104113 is 31140102.

It is a happy number.

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 20104113 - 2¹⁴ = 20087729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20104153) 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, 3108 + ... + 7061.

It is an arithmetic number, because the mean of its divisors is an integer number (3356100).

Almost surely, 2^20104113 is an apocalyptic number.

It is an amenable number.

20104113 is a deficient number, since it is larger than the sum of its proper divisors (6744687).

20104113 is a wasteful number, since it uses less digits than its factorization.

20104113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10831.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 20104113 is about 4483.7610328830. The cubic root of 20104113 is about 271.9119569790.

Adding to 20104113 its reverse (31140102), we get a palindrome (51244215).

The spelling of 20104113 in words is "twenty million, one hundred four thousand, one hundred thirteen".