111121110011100 has 144 divisors (see below), whose sum is σ = 367856603948288. Its totient is φ = 25370345871360.

The previous prime is 111121110011063. The next prime is 111121110011173. The reversal of 111121110011100 is 1110011121111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 28108789 + ... + 31817388.

Almost surely, 2^{111121110011100} is an apocalyptic number.

111121110011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111121110011100 is an abundant number, since it is smaller than the sum of its proper divisors (256735493937188).

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

111121110011100 is a wasteful number, since it uses less digits than its factorization.

111121110011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59927084 (or 59927077 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 111121110011100 its reverse (1110011121111), we get a palindrome (112231121132211).

The spelling of 111121110011100 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred ten million, eleven thousand, one hundred".