1151340323 has 8 divisors (see below), whose sum is σ = 1321565280. Its totient is φ = 982552320.

The previous prime is 1151340319. The next prime is 1151340347. The reversal of 1151340323 is 3230431511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1151340323 - 2² = 1151340319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1151340313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357518 + ... + 360723.

It is an arithmetic number, because the mean of its divisors is an integer number (165195660).

Almost surely, 2^1151340323 is an apocalyptic number.

1151340323 is a deficient number, since it is larger than the sum of its proper divisors (170224957).

1151340323 is an equidigital number, since it uses as much as digits as its factorization.

1151340323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718477.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1151340323 is about 33931.4061453397. The cubic root of 1151340323 is about 1048.0964219283.

Adding to 1151340323 its reverse (3230431511), we get a palindrome (4381771834).

The spelling of 1151340323 in words is "one billion, one hundred fifty-one million, three hundred forty thousand, three hundred twenty-three".