423302513 has 2 divisors, whose sum is σ = 423302514. Its totient is φ = 423302512.

The previous prime is 423302479. The next prime is 423302543. The reversal of 423302513 is 315203324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383258929 + 40043584 = 19577^2 + 6328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423302513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (423302543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211651256 + 211651257.

It is an arithmetic number, because the mean of its divisors is an integer number (211651257).

Almost surely, 2^423302513 is an apocalyptic number.

It is an amenable number.

423302513 is a deficient number, since it is larger than the sum of its proper divisors (1).

423302513 is an equidigital number, since it uses as much as digits as its factorization.

423302513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 423302513 is about 20574.3168294843. The cubic root of 423302513 is about 750.8449812810.

Adding to 423302513 its reverse (315203324), we get a palindrome (738505837).

The spelling of 423302513 in words is "four hundred twenty-three million, three hundred two thousand, five hundred thirteen".