240623311 has 2 divisors, whose sum is σ = 240623312. Its totient is φ = 240623310.

The previous prime is 240623303. The next prime is 240623351. The reversal of 240623311 is 113326042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240623311 - 2³ = 240623303 is a prime.

It is a super-4 number, since 4×240623311⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240623351) 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 as a sum of consecutive naturals, namely, 120311655 + 120311656.

It is an arithmetic number, because the mean of its divisors is an integer number (120311656).

Almost surely, 2^240623311 is an apocalyptic number.

240623311 is a deficient number, since it is larger than the sum of its proper divisors (1).

240623311 is an equidigital number, since it uses as much as digits as its factorization.

240623311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 240623311 is about 15512.0376159936. The cubic root of 240623311 is about 621.9840283944.

Adding to 240623311 its reverse (113326042), we get a palindrome (353949353).

The spelling of 240623311 in words is "two hundred forty million, six hundred twenty-three thousand, three hundred eleven".