1118520000 has 420 divisors, whose sum is σ = 4332488160. Its totient is φ = 274176000.

The previous prime is 1118519939. The next prime is 1118520017. The reversal of 1118520000 is 258111.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 59 ways as a sum of consecutive naturals, for example, 4679881 + ... + 4680119.

It is an arithmetic number, because the mean of its divisors is an integer number (10315448).

Almost surely, 2^1118520000 is an apocalyptic number.

1118520000 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 1118520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2166244080).

1118520000 is an abundant number, since it is smaller than the sum of its proper divisors (3213968160).

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

1118520000 is a wasteful number, since it uses less digits than its factorization.

1118520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1118520000 is about 33444.2820224923. The cubic root of 1118520000 is about 1038.0411847292.

Adding to 1118520000 its reverse (258111), we get a palindrome (1118778111).

The spelling of 1118520000 in words is "one billion, one hundred eighteen million, five hundred twenty thousand".