1121113120 has 48 divisors (see below), whose sum is σ = 2651042520. Its totient is φ = 448036864.

The previous prime is 1121113111. The next prime is 1121113141. The reversal of 1121113120 is 213111211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 628805776 + 492307344 = 25076^2 + 22188^2 .

It is a super-2 number, since 2×1121113120² = 2513789255672268800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121113120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222954 + ... + 227926.

Almost surely, 2^1121113120 is an apocalyptic number.

1121113120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121113120 is an abundant number, since it is smaller than the sum of its proper divisors (1529929400).

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

1121113120 is a wasteful number, since it uses less digits than its factorization.

1121113120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6397 (or 6389 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1121113120 is about 33483.0273422222. The cubic root of 1121113120 is about 1038.8427462811.

Adding to 1121113120 its reverse (213111211), we get a palindrome (1334224331).

The spelling of 1121113120 in words is "one billion, one hundred twenty-one million, one hundred thirteen thousand, one hundred twenty".