42040434127 has 2 divisors, whose sum is σ = 42040434128. Its totient is φ = 42040434126.

The previous prime is 42040434119. The next prime is 42040434131. The reversal of 42040434127 is 72143404024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42040434127 - 2³ = 42040434119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42040431127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21020217063 + 21020217064.

It is an arithmetic number, because the mean of its divisors is an integer number (21020217064).

Almost surely, 2^42040434127 is an apocalyptic number.

42040434127 is a deficient number, since it is larger than the sum of its proper divisors (1).

42040434127 is an equidigital number, since it uses as much as digits as its factorization.

42040434127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 31.

The spelling of 42040434127 in words is "forty-two billion, forty million, four hundred thirty-four thousand, one hundred twenty-seven".