1121515040 has 24 divisors (see below), whose sum is σ = 2649579660. Its totient is φ = 448605952.

The previous prime is 1121515039. The next prime is 1121515063. The reversal of 1121515040 is 405151211.

It can be written as a sum of positive squares in 2 ways, for example, as 1024768144 + 96746896 = 32012^2 + 9836^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504575 + ... + 3504894.

Almost surely, 2^1121515040 is an apocalyptic number.

1121515040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121515040 is an abundant number, since it is smaller than the sum of its proper divisors (1528064620).

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

1121515040 is an equidigital number, since it uses as much as digits as its factorization.

1121515040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009484 (or 7009476 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1121515040 is about 33489.0286511866. The cubic root of 1121515040 is about 1038.9668734496.

Adding to 1121515040 its reverse (405151211), we get a palindrome (1526666251).

The spelling of 1121515040 in words is "one billion, one hundred twenty-one million, five hundred fifteen thousand, forty".