1121520048 has 80 divisors (see below), whose sum is σ = 3165547392. Its totient is φ = 339328000.

The previous prime is 1121520041. The next prime is 1121520067. The reversal of 1121520048 is 8400251211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1121520041) 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, 463963 + ... + 466373.

Almost surely, 2^1121520048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121520048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1582773696).

1121520048 is an abundant number, since it is smaller than the sum of its proper divisors (2044027344).

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

1121520048 is a wasteful number, since it uses less digits than its factorization.

1121520048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 1121520048 is about 33489.1034218595. The cubic root of 1121520048 is about 1038.9684199108.

Adding to 1121520048 its reverse (8400251211), we get a palindrome (9521771259).

The spelling of 1121520048 in words is "one billion, one hundred twenty-one million, five hundred twenty thousand, forty-eight".