4000042431373 has 2 divisors, whose sum is σ = 4000042431374. Its totient is φ = 4000042431372.

The previous prime is 4000042431271. The next prime is 4000042431439. The reversal of 4000042431373 is 3731342400004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2099827050084 + 1900215381289 = 1449078^2 + 1378483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4000042431373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000042431773) 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, 2000021215686 + 2000021215687.

It is an arithmetic number, because the mean of its divisors is an integer number (2000021215687).

Almost surely, 2^{4000042431373} is an apocalyptic number.

It is an amenable number.

4000042431373 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000042431373 is an equidigital number, since it uses as much as digits as its factorization.

4000042431373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 31.

Adding to 4000042431373 its reverse (3731342400004), we get a palindrome (7731384831377).

The spelling of 4000042431373 in words is "four trillion, forty-two million, four hundred thirty-one thousand, three hundred seventy-three".