423421043407 has 2 divisors, whose sum is σ = 423421043408. Its totient is φ = 423421043406.

The previous prime is 423421043399. The next prime is 423421043431. The reversal of 423421043407 is 704340124324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423421043407 - 2³ = 423421043399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423421043477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211710521703 + 211710521704.

It is an arithmetic number, because the mean of its divisors is an integer number (211710521704).

Almost surely, 2^423421043407 is an apocalyptic number.

423421043407 is a deficient number, since it is larger than the sum of its proper divisors (1).

423421043407 is an equidigital number, since it uses as much as digits as its factorization.

423421043407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 34.

The spelling of 423421043407 in words is "four hundred twenty-three billion, four hundred twenty-one million, forty-three thousand, four hundred seven".