20020110111100 has 36 divisors (see below), whose sum is σ = 47393060665608. Its totient is φ = 7280040040000.

The previous prime is 20020110110953. The next prime is 20020110111107. The reversal of 20020110111100 is 111101102002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020110111107) 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, 9100048951 + ... + 9100051150.

It is an arithmetic number, because the mean of its divisors is an integer number (1316473907378).

Almost surely, 2^{20020110111100} is an apocalyptic number.

20020110111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020110111100 is an abundant number, since it is smaller than the sum of its proper divisors (27372950554508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020110111100 is a wasteful number, since it uses less digits than its factorization.

20020110111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18200100126 (or 18200100119 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20020110111100 its reverse (111101102002), we get a palindrome (20131211213102).

It can be divided in two parts, 200201 and 10111100, that added together give a palindrome (10311301).

The spelling of 20020110111100 in words is "twenty trillion, twenty billion, one hundred ten million, one hundred eleven thousand, one hundred".