423651323 has 2 divisors, whose sum is σ = 423651324. Its totient is φ = 423651322.

The previous prime is 423651317. The next prime is 423651359. The reversal of 423651323 is 323156324.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423651323 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (423651023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211825661 + 211825662.

It is an arithmetic number, because the mean of its divisors is an integer number (211825662).

Almost surely, 2^423651323 is an apocalyptic number.

423651323 is a deficient number, since it is larger than the sum of its proper divisors (1).

423651323 is an equidigital number, since it uses as much as digits as its factorization.

423651323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 29.

The square root of 423651323 is about 20582.7919146067. The cubic root of 423651323 is about 751.0511619084.

The spelling of 423651323 in words is "four hundred twenty-three million, six hundred fifty-one thousand, three hundred twenty-three".