20111042113011 has 12 divisors (see below), whose sum is σ = 30125182424792. Its totient is φ = 13407361408512.

The previous prime is 20111042113003. The next prime is 20111042113081. The reversal of 20111042113011 is 11031124011102.

20111042113011 is a `hidden beast` number, since 2 + 0 + 1 + 110 + 421 + 130 + 1 + 1 = 666.

It is not a de Polignac number, because 20111042113011 - 2³ = 20111042113003 is a prime.

It is a super-2 number, since 2×20111042113011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111042113081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41380744846 + ... + 41380745331.

Almost surely, 2^{20111042113011} is an apocalyptic number.

20111042113011 is a deficient number, since it is larger than the sum of its proper divisors (10014140311781).

20111042113011 is an frugal number, since it uses more digits than its factorization.

20111042113011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82761490192 (or 82761490180 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 20111042113011 its reverse (11031124011102), we get a palindrome (31142166124113).

The spelling of 20111042113011 in words is "twenty trillion, one hundred eleven billion, forty-two million, one hundred thirteen thousand, eleven".