1121302343 has 4 divisors (see below), whose sum is σ = 1281488400. Its totient is φ = 961116288.

The previous prime is 1121302289. The next prime is 1121302349. The reversal of 1121302343 is 3432031211.

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 1121302343 - 2⁸ = 1121302087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121302349) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 80093018 + ... + 80093031.

It is an arithmetic number, because the mean of its divisors is an integer number (320372100).

Almost surely, 2^1121302343 is an apocalyptic number.

1121302343 is a deficient number, since it is larger than the sum of its proper divisors (160186057).

1121302343 is an equidigital number, since it uses as much as digits as its factorization.

1121302343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160186056.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1121302343 is about 33485.8528784918. The cubic root of 1121302343 is about 1038.9011887580.

Adding to 1121302343 its reverse (3432031211), we get a palindrome (4553333554).

The spelling of 1121302343 in words is "one billion, one hundred twenty-one million, three hundred two thousand, three hundred forty-three".