1117152120 has 128 divisors (see below), whose sum is σ = 4031884800. Its totient is φ = 241906176.

The previous prime is 1117152097. The next prime is 1117152187. The reversal of 1117152120 is 212517111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19039 + ... + 50958.

It is an arithmetic number, because the mean of its divisors is an integer number (31499100).

Almost surely, 2^1117152120 is an apocalyptic number.

1117152120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1117152120 is an abundant number, since it is smaller than the sum of its proper divisors (2914732680).

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

1117152120 is a wasteful number, since it uses less digits than its factorization.

1117152120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70037 (or 70033 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 21.

The square root of 1117152120 is about 33423.8256338200. The cubic root of 1117152120 is about 1037.6178589677.

Adding to 1117152120 its reverse (212517111), we get a palindrome (1329669231).

The spelling of 1117152120 in words is "one billion, one hundred seventeen million, one hundred fifty-two thousand, one hundred twenty".