42023071 has 2 divisors, whose sum is σ = 42023072. Its totient is φ = 42023070.

The previous prime is 42023057. The next prime is 42023077. The reversal of 42023071 is 17032024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42023071 - 2⁵ = 42023039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42023077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21011535 + 21011536.

It is an arithmetic number, because the mean of its divisors is an integer number (21011536).

Almost surely, 2^42023071 is an apocalyptic number.

42023071 is a deficient number, since it is larger than the sum of its proper divisors (1).

42023071 is an equidigital number, since it uses as much as digits as its factorization.

42023071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 42023071 is about 6482.5204203304. The cubic root of 42023071 is about 347.6662999896. Note that the first 3 decimals are identical.

Adding to 42023071 its reverse (17032024), we get a palindrome (59055095).

The spelling of 42023071 in words is "forty-two million, twenty-three thousand, seventy-one".