240831323 has 2 divisors, whose sum is σ = 240831324. Its totient is φ = 240831322.

The previous prime is 240831313. The next prime is 240831329. The reversal of 240831323 is 323138042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240831323 - 2¹⁴ = 240814939 is a prime.

It is a super-2 number, since 2×240831323² = 115999452275860658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 240831292 and 240831301.

It is not a weakly prime, because it can be changed into another prime (240831329) 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 as a sum of consecutive naturals, namely, 120415661 + 120415662.

It is an arithmetic number, because the mean of its divisors is an integer number (120415662).

Almost surely, 2^240831323 is an apocalyptic number.

240831323 is a deficient number, since it is larger than the sum of its proper divisors (1).

240831323 is an equidigital number, since it uses as much as digits as its factorization.

240831323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 240831323 is about 15518.7410249672. The cubic root of 240831323 is about 622.1632059330.

Adding to 240831323 its reverse (323138042), we get a palindrome (563969365).

The spelling of 240831323 in words is "two hundred forty million, eight hundred thirty-one thousand, three hundred twenty-three".