1240330323 has 4 divisors (see below), whose sum is σ = 1653773768. Its totient is φ = 826886880.

The previous prime is 1240330307. The next prime is 1240330339. The reversal of 1240330323 is 3230330421.

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

It is an interprime number because it is at equal distance from previous prime (1240330307) and next prime (1240330339).

It is not a de Polignac number, because 1240330323 - 2⁴ = 1240330307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240330323.

It is not an unprimeable number, because it can be changed into a prime (1240330123) 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, 206721718 + ... + 206721723.

It is an arithmetic number, because the mean of its divisors is an integer number (413443442).

Almost surely, 2^1240330323 is an apocalyptic number.

1240330323 is a deficient number, since it is larger than the sum of its proper divisors (413443445).

1240330323 is an equidigital number, since it uses as much as digits as its factorization.

1240330323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413443444.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 1240330323 is about 35218.3236824242. The cubic root of 1240330323 is about 1074.4324598968.

Adding to 1240330323 its reverse (3230330421), we get a palindrome (4470660744).

The spelling of 1240330323 in words is "one billion, two hundred forty million, three hundred thirty thousand, three hundred twenty-three".