1120454243 has 4 divisors (see below), whose sum is σ = 1120878600. Its totient is φ = 1120029888.

The previous prime is 1120454233. The next prime is 1120454249. The reversal of 1120454243 is 3424540211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1120454243 - 2¹⁶ = 1120388707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120454249) by changing a digit.

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, 208193 + ... + 213506.

It is an arithmetic number, because the mean of its divisors is an integer number (280219650).

Almost surely, 2^1120454243 is an apocalyptic number.

1120454243 is a deficient number, since it is larger than the sum of its proper divisors (424357).

1120454243 is an equidigital number, since it uses as much as digits as its factorization.

1120454243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424356.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1120454243 is about 33473.1869262549. The cubic root of 1120454243 is about 1038.6391974714.

Adding to 1120454243 its reverse (3424540211), we get a palindrome (4544994454).

The spelling of 1120454243 in words is "one billion, one hundred twenty million, four hundred fifty-four thousand, two hundred forty-three".