1121043248 has 60 divisors (see below), whose sum is σ = 2402265888. Its totient is φ = 506338560.

The previous prime is 1121043241. The next prime is 1121043251. The reversal of 1121043248 is 8423401211.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1121043241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122678 + ... + 131498.

Almost surely, 2^1121043248 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 1121043248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201132944).

1121043248 is an abundant number, since it is smaller than the sum of its proper divisors (1281222640).

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

1121043248 is a wasteful number, since it uses less digits than its factorization.

1121043248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8902 (or 8883 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1121043248 is about 33481.9839316609. The cubic root of 1121043248 is about 1038.8211642995.

Adding to 1121043248 its reverse (8423401211), we get a palindrome (9544444459).

The spelling of 1121043248 in words is "one billion, one hundred twenty-one million, forty-three thousand, two hundred forty-eight".