123440363 has 2 divisors, whose sum is σ = 123440364. Its totient is φ = 123440362.

The previous prime is 123440353. The next prime is 123440413. The reversal of 123440363 is 363044321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123440363 - 2¹⁶ = 123374827 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (123440323) 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, 61720181 + 61720182.

It is an arithmetic number, because the mean of its divisors is an integer number (61720182).

Almost surely, 2^123440363 is an apocalyptic number.

123440363 is a deficient number, since it is larger than the sum of its proper divisors (1).

123440363 is an equidigital number, since it uses as much as digits as its factorization.

123440363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 123440363 is about 11110.3718659638. The cubic root of 123440363 is about 497.9117747723.

Adding to 123440363 its reverse (363044321), we get a palindrome (486484684).

The spelling of 123440363 in words is "one hundred twenty-three million, four hundred forty thousand, three hundred sixty-three".