42243107 has 2 divisors, whose sum is σ = 42243108. Its totient is φ = 42243106.

The previous prime is 42243101. The next prime is 42243109. The reversal of 42243107 is 70134224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42243107 is a prime.

Together with 42243109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42243101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121553 + 21121554.

It is an arithmetic number, because the mean of its divisors is an integer number (21121554).

Almost surely, 2^42243107 is an apocalyptic number.

42243107 is a deficient number, since it is larger than the sum of its proper divisors (1).

42243107 is an equidigital number, since it uses as much as digits as its factorization.

42243107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 42243107 is about 6499.4697476025. The cubic root of 42243107 is about 348.2720463795.

The spelling of 42243107 in words is "forty-two million, two hundred forty-three thousand, one hundred seven".