40344012223 has 2 divisors, whose sum is σ = 40344012224. Its totient is φ = 40344012222.

The previous prime is 40344012169. The next prime is 40344012253. The reversal of 40344012223 is 32221044304.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40344012223 - 2²¹ = 40341915071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40344012253) 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, 20172006111 + 20172006112.

It is an arithmetic number, because the mean of its divisors is an integer number (20172006112).

Almost surely, 2^40344012223 is an apocalyptic number.

40344012223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40344012223 is an equidigital number, since it uses as much as digits as its factorization.

40344012223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40344012223 its reverse (32221044304), we get a palindrome (72565056527).

The spelling of 40344012223 in words is "forty billion, three hundred forty-four million, twelve thousand, two hundred twenty-three".