42321371 has 2 divisors, whose sum is σ = 42321372. Its totient is φ = 42321370.

The previous prime is 42321337. The next prime is 42321397. The reversal of 42321371 is 17312324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42321371 - 2¹⁰ = 42320347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42321271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21160685 + 21160686.

It is an arithmetic number, because the mean of its divisors is an integer number (21160686).

Almost surely, 2^42321371 is an apocalyptic number.

42321371 is a deficient number, since it is larger than the sum of its proper divisors (1).

42321371 is an equidigital number, since it uses as much as digits as its factorization.

42321371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 23.

The square root of 42321371 is about 6505.4877603451. The cubic root of 42321371 is about 348.4869954329.

Adding to 42321371 its reverse (17312324), we get a palindrome (59633695).

The spelling of 42321371 in words is "forty-two million, three hundred twenty-one thousand, three hundred seventy-one".