423401401 has 2 divisors, whose sum is σ = 423401402. Its totient is φ = 423401400.

The previous prime is 423401399. The next prime is 423401413. The reversal of 423401401 is 104104324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281434176 + 141967225 = 16776^2 + 11915^2 .

It is a cyclic number.

It is not a de Polignac number, because 423401401 - 2¹ = 423401399 is a prime.

Together with 423401399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (423402401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211700700 + 211700701.

It is an arithmetic number, because the mean of its divisors is an integer number (211700701).

Almost surely, 2^423401401 is an apocalyptic number.

It is an amenable number.

423401401 is a deficient number, since it is larger than the sum of its proper divisors (1).

423401401 is an equidigital number, since it uses as much as digits as its factorization.

423401401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 423401401 is about 20576.7198795143. The cubic root of 423401401 is about 750.9034452046.

Adding to 423401401 its reverse (104104324), we get a palindrome (527505725).

The spelling of 423401401 in words is "four hundred twenty-three million, four hundred one thousand, four hundred one".