42383108491 has 2 divisors, whose sum is σ = 42383108492. Its totient is φ = 42383108490.

The previous prime is 42383108431. The next prime is 42383108497. The reversal of 42383108491 is 19480138324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42383108491 - 2¹¹ = 42383106443 is a prime.

It is not a weakly prime, because it can be changed into another prime (42383108497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21191554245 + 21191554246.

It is an arithmetic number, because the mean of its divisors is an integer number (21191554246).

Almost surely, 2^42383108491 is an apocalyptic number.

42383108491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42383108491 is an equidigital number, since it uses as much as digits as its factorization.

42383108491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 42383108491 in words is "forty-two billion, three hundred eighty-three million, one hundred eight thousand, four hundred ninety-one".