134204203423 has 4 divisors (see below), whose sum is σ = 134295438208. Its totient is φ = 134112968640.

The previous prime is 134204203417. The next prime is 134204203429. The reversal of 134204203423 is 324302402431.

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

It is an interprime number because it is at equal distance from previous prime (134204203417) and next prime (134204203429).

It is a cyclic number.

It is not a de Polignac number, because 134204203423 - 2²⁵ = 134170648991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134204203391 and 134204203400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134204203429) 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 3 ways as a sum of consecutive naturals, for example, 45615186 + ... + 45618127.

It is an arithmetic number, because the mean of its divisors is an integer number (33573859552).

Almost surely, 2^134204203423 is an apocalyptic number.

134204203423 is a deficient number, since it is larger than the sum of its proper divisors (91234785).

134204203423 is an equidigital number, since it uses as much as digits as its factorization.

134204203423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91234784.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 134204203423 its reverse (324302402431), we get a palindrome (458506605854).

The spelling of 134204203423 in words is "one hundred thirty-four billion, two hundred four million, two hundred three thousand, four hundred twenty-three".