1111200011100 has 54 divisors (see below), whose sum is σ = 3482994704280. Its totient is φ = 296320002720.

The previous prime is 1111200011059. The next prime is 1111200011101. The reversal of 1111200011100 is 11100021111.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111200011101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 617332440 + ... + 617334239.

Almost surely, 2^{1111200011100} is an apocalyptic number.

1111200011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111200011100 is an abundant number, since it is smaller than the sum of its proper divisors (2371794693180).

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

1111200011100 is a wasteful number, since it uses less digits than its factorization.

1111200011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234666699 (or 1234666689 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1111200011100 its reverse (11100021111), we get a palindrome (1122300032211).

The spelling of 1111200011100 in words is "one trillion, one hundred eleven billion, two hundred million, eleven thousand, one hundred".