20112013011 has 16 divisors (see below), whose sum is σ = 26894806400. Its totient is φ = 13368654720.

The previous prime is 20112013007. The next prime is 20112013049. The reversal of 20112013011 is 11031021102.

It is not a de Polignac number, because 20112013011 - 2² = 20112013007 is a prime.

It is a super-2 number, since 2×20112013011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112013511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2608440 + ... + 2616138.

It is an arithmetic number, because the mean of its divisors is an integer number (1680925400).

Almost surely, 2^20112013011 is an apocalyptic number.

20112013011 is a deficient number, since it is larger than the sum of its proper divisors (6782793389).

20112013011 is a wasteful number, since it uses less digits than its factorization.

20112013011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10146.

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

Adding to 20112013011 its reverse (11031021102), we get a palindrome (31143034113).

The spelling of 20112013011 in words is "twenty billion, one hundred twelve million, thirteen thousand, eleven".