1115140120 has 64 divisors (see below), whose sum is σ = 2571782400. Its totient is φ = 435027840.

The previous prime is 1115140079. The next prime is 1115140139. The reversal of 1115140120 is 210415111.

It is a super-2 number, since 2×1115140120² = 2487074974467228800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1115140094 and 1115140103.

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 15 ways as a sum of consecutive naturals, for example, 307357 + ... + 310963.

It is an arithmetic number, because the mean of its divisors is an integer number (40184100).

Almost surely, 2^1115140120 is an apocalyptic number.

1115140120 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 1115140120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1285891200).

1115140120 is an abundant number, since it is smaller than the sum of its proper divisors (1456642280).

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

1115140120 is a wasteful number, since it uses less digits than its factorization.

1115140120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3808 (or 3804 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1115140120 is about 33393.7137796921. The cubic root of 1115140120 is about 1036.9945652479.

Adding to 1115140120 its reverse (210415111), we get a palindrome (1325555231).

The spelling of 1115140120 in words is "one billion, one hundred fifteen million, one hundred forty thousand, one hundred twenty".