40451023271 has 2 divisors, whose sum is σ = 40451023272. Its totient is φ = 40451023270.

The previous prime is 40451023213. The next prime is 40451023273. The reversal of 40451023271 is 17232015404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40451023271 is a prime.

Together with 40451023273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40451023273) 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, 20225511635 + 20225511636.

It is an arithmetic number, because the mean of its divisors is an integer number (20225511636).

Almost surely, 2^40451023271 is an apocalyptic number.

40451023271 is a deficient number, since it is larger than the sum of its proper divisors (1).

40451023271 is an equidigital number, since it uses as much as digits as its factorization.

40451023271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 40451023271 its reverse (17232015404), we get a palindrome (57683038675).

The spelling of 40451023271 in words is "forty billion, four hundred fifty-one million, twenty-three thousand, two hundred seventy-one".