43142138443 has 2 divisors, whose sum is σ = 43142138444. Its totient is φ = 43142138442.

The previous prime is 43142138437. The next prime is 43142138503. The reversal of 43142138443 is 34483124134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43142138443 - 2⁹ = 43142137931 is a prime.

It is a super-2 number, since 2×43142138443² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43142138423) 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, 21571069221 + 21571069222.

It is an arithmetic number, because the mean of its divisors is an integer number (21571069222).

Almost surely, 2^43142138443 is an apocalyptic number.

43142138443 is a deficient number, since it is larger than the sum of its proper divisors (1).

43142138443 is an equidigital number, since it uses as much as digits as its factorization.

43142138443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 37.

The spelling of 43142138443 in words is "forty-three billion, one hundred forty-two million, one hundred thirty-eight thousand, four hundred forty-three".