423816311 has 2 divisors, whose sum is σ = 423816312. Its totient is φ = 423816310.

The previous prime is 423816271. The next prime is 423816313. The reversal of 423816311 is 113618324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423816311 is a prime.

It is a Sophie Germain prime.

Together with 423816313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423816313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211908155 + 211908156.

It is an arithmetic number, because the mean of its divisors is an integer number (211908156).

Almost surely, 2^423816311 is an apocalyptic number.

423816311 is a deficient number, since it is larger than the sum of its proper divisors (1).

423816311 is an equidigital number, since it uses as much as digits as its factorization.

423816311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 423816311 is about 20586.7994355606. The cubic root of 423816311 is about 751.1486464356.

The spelling of 423816311 in words is "four hundred twenty-three million, eight hundred sixteen thousand, three hundred eleven".