20112013 has 8 divisors (see below), whose sum is σ = 21251520. Its totient is φ = 18980640.

The previous prime is 20112007. The next prime is 20112023. The reversal of 20112013 is 31021102.

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 20112013 - 2⁵ = 20111981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112023) 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, 3456 + ... + 7222.

It is an arithmetic number, because the mean of its divisors is an integer number (2656440).

Almost surely, 2^20112013 is an apocalyptic number.

It is an amenable number.

20112013 is a deficient number, since it is larger than the sum of its proper divisors (1139507).

20112013 is a wasteful number, since it uses less digits than its factorization.

20112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 20112013 is about 4484.6419032070. The cubic root of 20112013 is about 271.9475686496.

Adding to 20112013 its reverse (31021102), we get a palindrome (51133115).

The spelling of 20112013 in words is "twenty million, one hundred twelve thousand, thirteen".