4138228942831 has 2 divisors, whose sum is σ = 4138228942832. Its totient is φ = 4138228942830.

The previous prime is 4138228942733. The next prime is 4138228942849. The reversal of 4138228942831 is 1382498228314.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4138228942831 - 2⁷ = 4138228942703 is a prime.

It is a super-2 number, since 2×4138228942831² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4138228922831) 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, 2069114471415 + 2069114471416.

It is an arithmetic number, because the mean of its divisors is an integer number (2069114471416).

Almost surely, 2^{4138228942831} is an apocalyptic number.

4138228942831 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138228942831 is an equidigital number, since it uses as much as digits as its factorization.

4138228942831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5308416, while the sum is 55.

The spelling of 4138228942831 in words is "four trillion, one hundred thirty-eight billion, two hundred twenty-eight million, nine hundred forty-two thousand, eight hundred thirty-one".