42660323 has 2 divisors, whose sum is σ = 42660324. Its totient is φ = 42660322.

The previous prime is 42660313. The next prime is 42660407. The reversal of 42660323 is 32306624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42660323 - 2¹⁰ = 42659299 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 42660292 and 42660301.

It is not a weakly prime, because it can be changed into another prime (42660313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21330161 + 21330162.

It is an arithmetic number, because the mean of its divisors is an integer number (21330162).

Almost surely, 2^42660323 is an apocalyptic number.

42660323 is a deficient number, since it is larger than the sum of its proper divisors (1).

42660323 is an equidigital number, since it uses as much as digits as its factorization.

42660323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 42660323 is about 6531.4870435453. The cubic root of 42660323 is about 349.4148672134.

Adding to 42660323 its reverse (32306624), we get a palindrome (74966947).

The spelling of 42660323 in words is "forty-two million, six hundred sixty thousand, three hundred twenty-three".