1151122303 has 4 divisors (see below), whose sum is σ = 1152351760. Its totient is φ = 1149892848.

The previous prime is 1151122267. The next prime is 1151122307. The reversal of 1151122303 is 3032211511.

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-1151122303 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 (1151122307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613323 + ... + 615196.

It is an arithmetic number, because the mean of its divisors is an integer number (288087940).

Almost surely, 2^1151122303 is an apocalyptic number.

1151122303 is a deficient number, since it is larger than the sum of its proper divisors (1229457).

1151122303 is an equidigital number, since it uses as much as digits as its factorization.

1151122303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229456.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1151122303 is about 33928.1933353369. The cubic root of 1151122303 is about 1048.0302612394.

Adding to 1151122303 its reverse (3032211511), we get a palindrome (4183333814).

The spelling of 1151122303 in words is "one billion, one hundred fifty-one million, one hundred twenty-two thousand, three hundred three".