42134359243 has 2 divisors, whose sum is σ = 42134359244. Its totient is φ = 42134359242.

The previous prime is 42134359229. The next prime is 42134359271. The reversal of 42134359243 is 34295343124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42134359243 - 2⁹ = 42134358731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42134359196 and 42134359205.

It is not a weakly prime, because it can be changed into another prime (42134359543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21067179621 + 21067179622.

It is an arithmetic number, because the mean of its divisors is an integer number (21067179622).

Almost surely, 2^42134359243 is an apocalyptic number.

42134359243 is a deficient number, since it is larger than the sum of its proper divisors (1).

42134359243 is an equidigital number, since it uses as much as digits as its factorization.

42134359243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 40.

The spelling of 42134359243 in words is "forty-two billion, one hundred thirty-four million, three hundred fifty-nine thousand, two hundred forty-three".