134335205023 has 4 divisors (see below), whose sum is σ = 134346058768. Its totient is φ = 134324351280.

The previous prime is 134335204999. The next prime is 134335205033. The reversal of 134335205023 is 320502533431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320502533431 = 31 ⋅10338791401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134335205023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134335205033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5408286 + ... + 5433067.

It is an arithmetic number, because the mean of its divisors is an integer number (33586514692).

Almost surely, 2^134335205023 is an apocalyptic number.

134335205023 is a deficient number, since it is larger than the sum of its proper divisors (10853745).

134335205023 is a wasteful number, since it uses less digits than its factorization.

134335205023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10853744.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 134335205023 its reverse (320502533431), we get a palindrome (454837738454).

The spelling of 134335205023 in words is "one hundred thirty-four billion, three hundred thirty-five million, two hundred five thousand, twenty-three".