20020112111103 has 32 divisors (see below), whose sum is σ = 29211869964480. Its totient is φ = 12121590435840.

The previous prime is 20020112111059. The next prime is 20020112111159. The reversal of 20020112111103 is 30111121102002.

It is not a de Polignac number, because 20020112111103 - 2¹⁸ = 20020111848959 is a prime.

It is a super-2 number, since 2×20020112111103² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020112111173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7432158 + ... + 9761003.

It is an arithmetic number, because the mean of its divisors is an integer number (912870936390).

Almost surely, 2^{20020112111103} is an apocalyptic number.

20020112111103 is a deficient number, since it is larger than the sum of its proper divisors (9191757853377).

20020112111103 is a wasteful number, since it uses less digits than its factorization.

20020112111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17193659.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 20020112111103 its reverse (30111121102002), we get a palindrome (50131233213105).

It can be divided in two parts, 2002011 and 2111103, that added together give a palindrome (4113114).

The spelling of 20020112111103 in words is "twenty trillion, twenty billion, one hundred twelve million, one hundred eleven thousand, one hundred three".