20201120112111 has 16 divisors (see below), whose sum is σ = 27022136594784. Its totient is φ = 13423762520064.

The previous prime is 20201120112067. The next prime is 20201120112161. The reversal of 20201120112111 is 11121102110202.

It is a happy number.

It is not a de Polignac number, because 20201120112111 - 2¹⁴ = 20201120095727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201120112161) 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, 20166175 + ... + 21144191.

It is an arithmetic number, because the mean of its divisors is an integer number (1688883537174).

Almost surely, 2^{20201120112111} is an apocalyptic number.

20201120112111 is a deficient number, since it is larger than the sum of its proper divisors (6821016482673).

20201120112111 is a wasteful number, since it uses less digits than its factorization.

20201120112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000330.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20201120112111 its reverse (11121102110202), we get a palindrome (31322222222313).

The spelling of 20201120112111 in words is "twenty trillion, two hundred one billion, one hundred twenty million, one hundred twelve thousand, one hundred eleven".