1151323303 has 4 divisors (see below), whose sum is σ = 1239886648. Its totient is φ = 1062759960.

The previous prime is 1151323301. The next prime is 1151323307. The reversal of 1151323303 is 3033231511.

It is a happy number.

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 1151323303 - 2¹ = 1151323301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151323301) 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, 44281653 + ... + 44281678.

It is an arithmetic number, because the mean of its divisors is an integer number (309971662).

Almost surely, 2^1151323303 is an apocalyptic number.

1151323303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1151323303 is a deficient number, since it is larger than the sum of its proper divisors (88563345).

1151323303 is an equidigital number, since it uses as much as digits as its factorization.

1151323303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88563344.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 1151323303 is about 33931.1553443145. The cubic root of 1151323303 is about 1048.0912573132.

Adding to 1151323303 its reverse (3033231511), we get a palindrome (4184554814).

The spelling of 1151323303 in words is "one billion, one hundred fifty-one million, three hundred twenty-three thousand, three hundred three".