1151242303 has 4 divisors (see below), whose sum is σ = 1151758720. Its totient is φ = 1150725888.

The previous prime is 1151242297. The next prime is 1151242349. The reversal of 1151242303 is 3032421511.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151242303 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 (1151242903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254850 + ... + 259327.

It is an arithmetic number, because the mean of its divisors is an integer number (287939680).

Almost surely, 2^1151242303 is an apocalyptic number.

1151242303 is a deficient number, since it is larger than the sum of its proper divisors (516417).

1151242303 is an equidigital number, since it uses as much as digits as its factorization.

1151242303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516416.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1151242303 is about 33929.9617300108. The cubic root of 1151242303 is about 1048.0666776599.

Adding to 1151242303 its reverse (3032421511), we get a palindrome (4183663814).

The spelling of 1151242303 in words is "one billion, one hundred fifty-one million, two hundred forty-two thousand, three hundred three".