42105532043 has 2 divisors, whose sum is σ = 42105532044. Its totient is φ = 42105532042.

The previous prime is 42105532009. The next prime is 42105532109. The reversal of 42105532043 is 34023550124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42105532043 - 2³⁴ = 24925662859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42105531997 and 42105532015.

It is not a weakly prime, because it can be changed into another prime (42105532243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21052766021 + 21052766022.

It is an arithmetic number, because the mean of its divisors is an integer number (21052766022).

Almost surely, 2^42105532043 is an apocalyptic number.

42105532043 is a deficient number, since it is larger than the sum of its proper divisors (1).

42105532043 is an equidigital number, since it uses as much as digits as its factorization.

42105532043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 42105532043 in words is "forty-two billion, one hundred five million, five hundred thirty-two thousand, forty-three".