1112111020100 has 144 divisors (see below), whose sum is σ = 2578661205120. Its totient is φ = 414849177600.

The previous prime is 1112111020067. The next prime is 1112111020109. The reversal of 1112111020100 is 10201112111.

It is not an unprimeable number, because it can be changed into a prime (1112111020109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161899466 + ... + 161906334.

It is an arithmetic number, because the mean of its divisors is an integer number (17907369480).

Almost surely, 2^{1112111020100} is an apocalyptic number.

1112111020100 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 1112111020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289330602560).

1112111020100 is an abundant number, since it is smaller than the sum of its proper divisors (1466550185020).

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

1112111020100 is a wasteful number, since it uses less digits than its factorization.

1112111020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7758 (or 7751 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1112111020100 its reverse (10201112111), we get a palindrome (1122312132211).

It can be divided in two parts, 111211 and 1020100, that added together give a palindrome (1131311).

The spelling of 1112111020100 in words is "one trillion, one hundred twelve billion, one hundred eleven million, twenty thousand, one hundred".