40421314243 has 2 divisors, whose sum is σ = 40421314244. Its totient is φ = 40421314242.

The previous prime is 40421314237. The next prime is 40421314247. The reversal of 40421314243 is 34241312404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40421314243 - 2⁹ = 40421313731 is a prime.

It is not a weakly prime, because it can be changed into another prime (40421314247) 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, 20210657121 + 20210657122.

It is an arithmetic number, because the mean of its divisors is an integer number (20210657122).

Almost surely, 2^40421314243 is an apocalyptic number.

40421314243 is a deficient number, since it is larger than the sum of its proper divisors (1).

40421314243 is an equidigital number, since it uses as much as digits as its factorization.

40421314243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 40421314243 its reverse (34241312404), we get a palindrome (74662626647).

The spelling of 40421314243 in words is "forty billion, four hundred twenty-one million, three hundred fourteen thousand, two hundred forty-three".