40320321271 has 2 divisors, whose sum is σ = 40320321272. Its totient is φ = 40320321270.

The previous prime is 40320321269. The next prime is 40320321323. The reversal of 40320321271 is 17212302304.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40320321271 - 2¹ = 40320321269 is a prime.

Together with 40320321269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40320381271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20160160635 + 20160160636.

It is an arithmetic number, because the mean of its divisors is an integer number (20160160636).

Almost surely, 2^40320321271 is an apocalyptic number.

40320321271 is a deficient number, since it is larger than the sum of its proper divisors (1).

40320321271 is an equidigital number, since it uses as much as digits as its factorization.

40320321271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 40320321271 its reverse (17212302304), we get a palindrome (57532623575).

The spelling of 40320321271 in words is "forty billion, three hundred twenty million, three hundred twenty-one thousand, two hundred seventy-one".