20001113 has 8 divisors (see below), whose sum is σ = 22013856. Its totient is φ = 18020800.

The previous prime is 20001083. The next prime is 20001139. The reversal of 20001113 is 31110002.

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 20001113 - 2¹² = 19997017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20001113.

It is not an unprimeable number, because it can be changed into a prime (20001613) 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 7 ways as a sum of consecutive naturals, for example, 6803 + ... + 9288.

It is an arithmetic number, because the mean of its divisors is an integer number (2751732).

Almost surely, 2^20001113 is an apocalyptic number.

It is an amenable number.

20001113 is a deficient number, since it is larger than the sum of its proper divisors (2012743).

20001113 is a wasteful number, since it uses less digits than its factorization.

20001113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16215.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 20001113 is about 4472.2603904513. The cubic root of 20001113 is about 271.4467968108.

Adding to 20001113 its reverse (31110002), we get a palindrome (51111115).

Subtracting 20001113 from its reverse (31110002), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 2000 and 1113, that added together give a palindrome (3113).

The spelling of 20001113 in words is "twenty million, one thousand, one hundred thirteen".