1121054450 has 48 divisors (see below), whose sum is σ = 2167361280. Its totient is φ = 430893120.

The previous prime is 1121054437. The next prime is 1121054491. The reversal of 1121054450 is 544501211.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321617 + ... + 325083.

It is an arithmetic number, because the mean of its divisors is an integer number (45153360).

Almost surely, 2^1121054450 is an apocalyptic number.

1121054450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121054450 is a deficient number, since it is larger than the sum of its proper divisors (1046306830).

1121054450 is a wasteful number, since it uses less digits than its factorization.

1121054450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731 (or 3726 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1121054450 is about 33482.1512152371. The cubic root of 1121054450 is about 1038.8246244205.

Adding to 1121054450 its reverse (544501211), we get a palindrome (1665555661).

The spelling of 1121054450 in words is "one billion, one hundred twenty-one million, fifty-four thousand, four hundred fifty".