111010120000 has 140 divisors (see below), whose sum is σ = 296444947876. Its totient is φ = 40988160000.

The previous prime is 111010119989. The next prime is 111010120027. The reversal of 111010120000 is 21010111.

It can be written as a sum of positive squares in 10 ways, for example, as 95051356416 + 15958763584 = 308304^2 + 126328^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 413260 + ... + 626740.

Almost surely, 2^111010120000 is an apocalyptic number.

111010120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111010120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148222473938).

111010120000 is an abundant number, since it is smaller than the sum of its proper divisors (185434827876).

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

111010120000 is an equidigital number, since it uses as much as digits as its factorization.

111010120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213526 (or 213501 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 111010120000 its reverse (21010111), we get a palindrome (111031130111).

The spelling of 111010120000 in words is "one hundred eleven billion, ten million, one hundred twenty thousand".