20000113 has 4 divisors (see below), whose sum is σ = 22857280. Its totient is φ = 17142948.

The previous prime is 20000107. The next prime is 20000147. The reversal of 20000113 is 31100002.

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 20000113 - 2⁵ = 20000081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7), and also a Moran number because the ratio is a prime number: 2857159 = 20000113 / (2 + 0 + 0 + 0 + 0 + 1 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000096 and 20000105.

It is not an unprimeable number, because it can be changed into a prime (20000153) 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, 1428573 + ... + 1428586.

It is an arithmetic number, because the mean of its divisors is an integer number (5714320).

Almost surely, 2^20000113 is an apocalyptic number.

It is an amenable number.

20000113 is a deficient number, since it is larger than the sum of its proper divisors (2857167).

20000113 is an equidigital number, since it uses as much as digits as its factorization.

20000113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857166.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 20000113 is about 4472.1485887658. The cubic root of 20000113 is about 271.4422728738.

Adding to 20000113 its reverse (31100002), we get a palindrome (51100115).

The spelling of 20000113 in words is "twenty million, one hundred thirteen", and thus it is an aban number.