423221321321429 has 16 divisors (see below), whose sum is σ = 450109204448256. Its totient is φ = 396557043667200.

The previous prime is 423221321321413. The next prime is 423221321321431. The reversal of 423221321321429 is 924123123122324.

It is a happy number.

It is not a de Polignac number, because 423221321321429 - 2⁴ = 423221321321413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423221323321429) 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 in 15 ways as a sum of consecutive naturals, for example, 28500242 + ... + 40727219.

It is an arithmetic number, because the mean of its divisors is an integer number (28131825278016).

Almost surely, 2^{423221321321429} is an apocalyptic number.

It is an amenable number.

423221321321429 is a deficient number, since it is larger than the sum of its proper divisors (26887883126827).

423221321321429 is a wasteful number, since it uses less digits than its factorization.

423221321321429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69229076.

The product of its digits is 248832, while the sum is 41.

The spelling of 423221321321429 in words is "four hundred twenty-three trillion, two hundred twenty-one billion, three hundred twenty-one million, three hundred twenty-one thousand, four hundred twenty-nine".