1121242306 has 4 divisors (see below), whose sum is σ = 1681863462. Its totient is φ = 560621152.

The previous prime is 1121242289. The next prime is 1121242333. The reversal of 1121242306 is 6032421211.

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

It can be written as a sum of positive squares in only one way, i.e., 1066349025 + 54893281 = 32655^2 + 7409^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 280310575 + ... + 280310578.

Almost surely, 2^1121242306 is an apocalyptic number.

1121242306 is a deficient number, since it is larger than the sum of its proper divisors (560621156).

1121242306 is an equidigital number, since it uses as much as digits as its factorization.

1121242306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560621155.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1121242306 is about 33484.9564132910. The cubic root of 1121242306 is about 1038.8826467402.

Adding to 1121242306 its reverse (6032421211), we get a palindrome (7153663517).

The spelling of 1121242306 in words is "one billion, one hundred twenty-one million, two hundred forty-two thousand, three hundred six".