42231323 has 2 divisors, whose sum is σ = 42231324. Its totient is φ = 42231322.

The previous prime is 42231311. The next prime is 42231347. The reversal of 42231323 is 32313224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42231323 - 2⁸ = 42231067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42231295 and 42231304.

It is not a weakly prime, because it can be changed into another prime (42231223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21115661 + 21115662.

It is an arithmetic number, because the mean of its divisors is an integer number (21115662).

Almost surely, 2^42231323 is an apocalyptic number.

42231323 is a deficient number, since it is larger than the sum of its proper divisors (1).

42231323 is an equidigital number, since it uses as much as digits as its factorization.

42231323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 20.

The square root of 42231323 is about 6498.5631488815. The cubic root of 42231323 is about 348.2396590879.

Adding to 42231323 its reverse (32313224), we get a palindrome (74544547).

The spelling of 42231323 in words is "forty-two million, two hundred thirty-one thousand, three hundred twenty-three".