1115117124 has 72 divisors (see below), whose sum is σ = 2867092704. Its totient is φ = 337328640.

The previous prime is 1115117123. The next prime is 1115117131. The reversal of 1115117124 is 4217115111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1115117094 and 1115117103.

It is not an unprimeable number, because it can be changed into a prime (1115117123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1932324 + ... + 1932900.

It is an arithmetic number, because the mean of its divisors is an integer number (39820732).

Almost surely, 2^1115117124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115117124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433546352).

1115117124 is an abundant number, since it is smaller than the sum of its proper divisors (1751975580).

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

1115117124 is an frugal number, since it uses more digits than its factorization.

1115117124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 593 counting only the distinct ones).

The product of its digits is 280, while the sum is 24.

The square root of 1115117124 is about 33393.3694616162. The cubic root of 1115117124 is about 1036.9874370283.

The spelling of 1115117124 in words is "one billion, one hundred fifteen million, one hundred seventeen thousand, one hundred twenty-four".