1111203211120 has 20 divisors (see below), whose sum is σ = 2583547466040. Its totient is φ = 444481284416.

The previous prime is 1111203211117. The next prime is 1111203211189. The reversal of 1111203211120 is 211123021111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1111203211094 and 1111203211103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6945019990 + ... + 6945020149.

It is an arithmetic number, because the mean of its divisors is an integer number (129177373302).

Almost surely, 2^{1111203211120} is an apocalyptic number.

1111203211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111203211120 is an abundant number, since it is smaller than the sum of its proper divisors (1472344254920).

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

1111203211120 is a wasteful number, since it uses less digits than its factorization.

1111203211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13890040152 (or 13890040146 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1111203211120 its reverse (211123021111), we get a palindrome (1322326232231).

The spelling of 1111203211120 in words is "one trillion, one hundred eleven billion, two hundred three million, two hundred eleven thousand, one hundred twenty".