42310022191 has 2 divisors, whose sum is σ = 42310022192. Its totient is φ = 42310022190.

The previous prime is 42310022189. The next prime is 42310022219. The reversal of 42310022191 is 19122001324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42310022191 - 2¹ = 42310022189 is a prime.

Together with 42310022189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42310022291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155011095 + 21155011096.

It is an arithmetic number, because the mean of its divisors is an integer number (21155011096).

Almost surely, 2^42310022191 is an apocalyptic number.

42310022191 is a deficient number, since it is larger than the sum of its proper divisors (1).

42310022191 is an equidigital number, since it uses as much as digits as its factorization.

42310022191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 42310022191 in words is "forty-two billion, three hundred ten million, twenty-two thousand, one hundred ninety-one".