1121500080 has 200 divisors, whose sum is σ = 4100593200. Its totient is φ = 283295232.

The previous prime is 1121500031. The next prime is 1121500097. The reversal of 1121500080 is 800051211.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 118566 + ... + 127674.

It is an arithmetic number, because the mean of its divisors is an integer number (20502966).

Almost surely, 2^1121500080 is an apocalyptic number.

1121500080 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 1121500080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2050296600).

1121500080 is an abundant number, since it is smaller than the sum of its proper divisors (2979093120).

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

1121500080 is a wasteful number, since it uses less digits than its factorization.

1121500080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9153 (or 9138 counting only the distinct ones).

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

The square root of 1121500080 is about 33488.8052937097. The cubic root of 1121500080 is about 1038.9622538018.

Adding to 1121500080 its reverse (800051211), we get a palindrome (1921551291).

The spelling of 1121500080 in words is "one billion, one hundred twenty-one million, five hundred thousand, eighty".