4000042431271 has 2 divisors, whose sum is σ = 4000042431272. Its totient is φ = 4000042431270.

The previous prime is 4000042431269. The next prime is 4000042431373. The reversal of 4000042431271 is 1721342400004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4000042431271 - 2¹ = 4000042431269 is a prime.

Together with 4000042431269, 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 (4000042441271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000021215635 + 2000021215636.

It is an arithmetic number, because the mean of its divisors is an integer number (2000021215636).

Almost surely, 2^{4000042431271} is an apocalyptic number.

4000042431271 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000042431271 is an equidigital number, since it uses as much as digits as its factorization.

4000042431271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 4000042431271 its reverse (1721342400004), we get a palindrome (5721384831275).

The spelling of 4000042431271 in words is "four trillion, forty-two million, four hundred thirty-one thousand, two hundred seventy-one".