1111200111100 has 36 divisors (see below), whose sum is σ = 2411454125808. Its totient is φ = 444452416000.

The previous prime is 1111200111071. The next prime is 1111200111113. The reversal of 1111200111100 is 11110021111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1310985 + ... + 1985215.

It is an arithmetic number, because the mean of its divisors is an integer number (66984836828).

Almost surely, 2^{1111200111100} is an apocalyptic number.

1111200111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111200111100 is an abundant number, since it is smaller than the sum of its proper divisors (1300254014708).

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

1111200111100 is a wasteful number, since it uses less digits than its factorization.

1111200111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690726 (or 690719 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1111200111100 its reverse (11110021111), we get a palindrome (1122310132211).

It can be divided in two parts, 111120011 and 1100, that added together give a palindrome (111121111).

The spelling of 1111200111100 in words is "one trillion, one hundred eleven billion, two hundred million, one hundred eleven thousand, one hundred".