42142082111 has 2 divisors, whose sum is σ = 42142082112. Its totient is φ = 42142082110.

The previous prime is 42142082089. The next prime is 42142082113. The reversal of 42142082111 is 11128024124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42142082111 - 2¹⁴ = 42142065727 is a prime.

Together with 42142082113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42142082113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071041055 + 21071041056.

It is an arithmetic number, because the mean of its divisors is an integer number (21071041056).

Almost surely, 2^42142082111 is an apocalyptic number.

42142082111 is a deficient number, since it is larger than the sum of its proper divisors (1).

42142082111 is an equidigital number, since it uses as much as digits as its factorization.

42142082111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 26.

The spelling of 42142082111 in words is "forty-two billion, one hundred forty-two million, eighty-two thousand, one hundred eleven".