423421202133 has 24 divisors (see below), whose sum is σ = 622995024600. Its totient is φ = 277071742464.

The previous prime is 423421202111. The next prime is 423421202137. The reversal of 423421202133 is 331202124324.

423421202133 is a `hidden beast` number, since 4 + 2 + 3 + 421 + 20 + 213 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 20960379729 + 402460822404 = 144777^2 + 634398^2 .

It is not a de Polignac number, because 423421202133 - 2¹⁴ = 423421185749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423421202097 and 423421202106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423421202137) 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 23 ways as a sum of consecutive naturals, for example, 1819518 + ... + 2038991.

It is an arithmetic number, because the mean of its divisors is an integer number (25958126025).

Almost surely, 2^423421202133 is an apocalyptic number.

It is an amenable number.

423421202133 is a deficient number, since it is larger than the sum of its proper divisors (199573822467).

423421202133 is a wasteful number, since it uses less digits than its factorization.

423421202133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858741 (or 3858738 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 423421202133 its reverse (331202124324), we get a palindrome (754623326457).

The spelling of 423421202133 in words is "four hundred twenty-three billion, four hundred twenty-one million, two hundred two thousand, one hundred thirty-three".