134020520013 has 32 divisors (see below), whose sum is σ = 188206156800. Its totient is φ = 84664321280.

The previous prime is 134020519957. The next prime is 134020520057. The reversal of 134020520013 is 310025020431.

It is a cyclic number.

It is not a de Polignac number, because 134020520013 - 2¹⁷ = 134020388941 is a prime.

It is a super-2 number, since 2×134020520013² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134020520713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26281138 + ... + 26286236.

It is an arithmetic number, because the mean of its divisors is an integer number (5881442400).

Almost surely, 2^134020520013 is an apocalyptic number.

It is an amenable number.

134020520013 is a deficient number, since it is larger than the sum of its proper divisors (54185636787).

134020520013 is a wasteful number, since it uses less digits than its factorization.

134020520013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8609.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 134020520013 its reverse (310025020431), we get a palindrome (444045540444).

The spelling of 134020520013 in words is "one hundred thirty-four billion, twenty million, five hundred twenty thousand, thirteen".