420234324089 has 2 divisors, whose sum is σ = 420234324090. Its totient is φ = 420234324088.

The previous prime is 420234324067. The next prime is 420234324157. The reversal of 420234324089 is 980423432024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408310776064 + 11923548025 = 638992^2 + 109195^2 .

It is a cyclic number.

It is not a de Polignac number, because 420234324089 - 2²⁰ = 420233275513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (420234324049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210117162044 + 210117162045.

It is an arithmetic number, because the mean of its divisors is an integer number (210117162045).

Almost surely, 2^420234324089 is an apocalyptic number.

It is an amenable number.

420234324089 is a deficient number, since it is larger than the sum of its proper divisors (1).

420234324089 is an equidigital number, since it uses as much as digits as its factorization.

420234324089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 420234324089 in words is "four hundred twenty billion, two hundred thirty-four million, three hundred twenty-four thousand, eighty-nine".