20036113 has 4 divisors (see below), whose sum is σ = 20182500. Its totient is φ = 19889728.

The previous prime is 20036099. The next prime is 20036131. The reversal of 20036113 is 31163002.

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 16064064 + 3972049 = 4008^2 + 1993^2 .

It is a cyclic number.

It is not a de Polignac number, because 20036113 - 2⁹ = 20035601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20036213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72988 + ... + 73261.

It is an arithmetic number, because the mean of its divisors is an integer number (5045625).

Almost surely, 2^20036113 is an apocalyptic number.

It is an amenable number.

20036113 is a deficient number, since it is larger than the sum of its proper divisors (146387).

20036113 is a wasteful number, since it uses less digits than its factorization.

20036113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146386.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 20036113 is about 4476.1716901835. The cubic root of 20036113 is about 271.6050396969.

Adding to 20036113 its reverse (31163002), we get a palindrome (51199115).

The spelling of 20036113 in words is "twenty million, thirty-six thousand, one hundred thirteen".