423220021134 has 32 divisors (see below), whose sum is σ = 850508100000. Its totient is φ = 140396949504.

The previous prime is 423220021093. The next prime is 423220021229. The reversal of 423220021134 is 431120022324.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 846042 + ... + 1249890.

It is an arithmetic number, because the mean of its divisors is an integer number (26578378125).

Almost surely, 2^423220021134 is an apocalyptic number.

423220021134 is an abundant number, since it is smaller than the sum of its proper divisors (427288078866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423220021134 is a wasteful number, since it uses less digits than its factorization.

423220021134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404692.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 423220021134 its reverse (431120022324), we get a palindrome (854340043458).

The spelling of 423220021134 in words is "four hundred twenty-three billion, two hundred twenty million, twenty-one thousand, one hundred thirty-four".