423042133 has 2 divisors, whose sum is σ = 423042134. Its totient is φ = 423042132.

The previous prime is 423042121. The next prime is 423042143. The reversal of 423042133 is 331240324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377641489 + 45400644 = 19433^2 + 6738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423042133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423042143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211521066 + 211521067.

It is an arithmetic number, because the mean of its divisors is an integer number (211521067).

Almost surely, 2^423042133 is an apocalyptic number.

It is an amenable number.

423042133 is a deficient number, since it is larger than the sum of its proper divisors (1).

423042133 is an equidigital number, since it uses as much as digits as its factorization.

423042133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 423042133 is about 20567.9880639794. The cubic root of 423042133 is about 750.6909975381.

Adding to 423042133 its reverse (331240324), we get a palindrome (754282457).

The spelling of 423042133 in words is "four hundred twenty-three million, forty-two thousand, one hundred thirty-three".