423324202187 has 2 divisors, whose sum is σ = 423324202188. Its totient is φ = 423324202186.

The previous prime is 423324202157. The next prime is 423324202241. The reversal of 423324202187 is 781202423324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423324202187 - 2²⁶ = 423257093323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423324202187.

It is not a weakly prime, because it can be changed into another prime (423324202157) 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, 211662101093 + 211662101094.

It is an arithmetic number, because the mean of its divisors is an integer number (211662101094).

Almost surely, 2^423324202187 is an apocalyptic number.

423324202187 is a deficient number, since it is larger than the sum of its proper divisors (1).

423324202187 is an equidigital number, since it uses as much as digits as its factorization.

423324202187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 38.

The spelling of 423324202187 in words is "four hundred twenty-three billion, three hundred twenty-four million, two hundred two thousand, one hundred eighty-seven".