20110013 has 8 divisors (see below), whose sum is σ = 25072320. Its totient is φ = 15670080.

The previous prime is 20109989. The next prime is 20110043. The reversal of 20110013 is 31001102.

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 20110013 - 2⁸ = 20109757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110043) 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, 130508 + ... + 130661.

It is an arithmetic number, because the mean of its divisors is an integer number (3134040).

Almost surely, 2^20110013 is an apocalyptic number.

It is an amenable number.

20110013 is a deficient number, since it is larger than the sum of its proper divisors (4962307).

20110013 is a wasteful number, since it uses less digits than its factorization.

20110013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261187.

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

The square root of 20110013 is about 4484.4189144191. The cubic root of 20110013 is about 271.9385539185.

Adding to 20110013 its reverse (31001102), we get a palindrome (51111115).

The spelling of 20110013 in words is "twenty million, one hundred ten thousand, thirteen".