42321241 has 2 divisors, whose sum is σ = 42321242. Its totient is φ = 42321240.

The previous prime is 42321203. The next prime is 42321247. The reversal of 42321241 is 14212324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36542025 + 5779216 = 6045^2 + 2404^2 .

It is a cyclic number.

It is not a de Polignac number, because 42321241 - 2¹⁵ = 42288473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42321247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21160620 + 21160621.

It is an arithmetic number, because the mean of its divisors is an integer number (21160621).

Almost surely, 2^42321241 is an apocalyptic number.

It is an amenable number.

42321241 is a deficient number, since it is larger than the sum of its proper divisors (1).

42321241 is an equidigital number, since it uses as much as digits as its factorization.

42321241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 19.

The square root of 42321241 is about 6505.4777687730. The cubic root of 42321241 is about 348.4866386127.

Adding to 42321241 its reverse (14212324), we get a palindrome (56533565).

The spelling of 42321241 in words is "forty-two million, three hundred twenty-one thousand, two hundred forty-one".