20111121433113 has 16 divisors (see below), whose sum is σ = 28647420952320. Its totient is φ = 12512182381776.

The previous prime is 20111121433097. The next prime is 20111121433133. The reversal of 20111121433113 is 31133412111102.

It is not a de Polignac number, because 20111121433113 - 2⁴ = 20111121433097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20111121433133) 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, 2633031195 + ... + 2633038832.

It is an arithmetic number, because the mean of its divisors is an integer number (1790463809520).

Almost surely, 2^{20111121433113} is an apocalyptic number.

It is an amenable number.

20111121433113 is a deficient number, since it is larger than the sum of its proper divisors (8536299519207).

20111121433113 is a wasteful number, since it uses less digits than its factorization.

20111121433113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5266070116.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 20111121433113 its reverse (31133412111102), we get a palindrome (51244533544215).

The spelling of 20111121433113 in words is "twenty trillion, one hundred eleven billion, one hundred twenty-one million, four hundred thirty-three thousand, one hundred thirteen".