1116511320 has 64 divisors (see below), whose sum is σ = 3420817920. Its totient is φ = 291400064.

The previous prime is 1116511289. The next prime is 1116511327. The reversal of 1116511320 is 231156111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116511327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93342 + ... + 104621.

It is an arithmetic number, because the mean of its divisors is an integer number (53450280).

Almost surely, 2^1116511320 is an apocalyptic number.

1116511320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116511320 is an abundant number, since it is smaller than the sum of its proper divisors (2304306600).

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

1116511320 is a wasteful number, since it uses less digits than its factorization.

1116511320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198024 (or 198020 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1116511320 is about 33414.2382825047. The cubic root of 1116511320 is about 1037.4194280102.

Adding to 1116511320 its reverse (231156111), we get a palindrome (1347667431).

The spelling of 1116511320 in words is "one billion, one hundred sixteen million, five hundred eleven thousand, three hundred twenty".