423204222134 has 4 divisors (see below), whose sum is σ = 634806333204. Its totient is φ = 211602111066.

The previous prime is 423204222107. The next prime is 423204222139. The reversal of 423204222134 is 431222402324.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 423204222097 and 423204222106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423204222139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105801055532 + ... + 105801055535.

It is an arithmetic number, because the mean of its divisors is an integer number (158701583301).

Almost surely, 2^423204222134 is an apocalyptic number.

423204222134 is a deficient number, since it is larger than the sum of its proper divisors (211602111070).

423204222134 is a wasteful number, since it uses less digits than its factorization.

423204222134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211602111069.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 423204222134 its reverse (431222402324), we get a palindrome (854426624458).

The spelling of 423204222134 in words is "four hundred twenty-three billion, two hundred four million, two hundred twenty-two thousand, one hundred thirty-four".