13212064535 has 4 divisors (see below), whose sum is σ = 15854477448. Its totient is φ = 10569651624.

The previous prime is 13212064511. The next prime is 13212064543. The reversal of 13212064535 is 53546021231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53546021231 = 37 ⋅1447189763.

It is a cyclic number.

It is not a de Polignac number, because 13212064535 - 2²⁰ = 13211015959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321206449 + ... + 1321206458.

It is an arithmetic number, because the mean of its divisors is an integer number (3963619362).

Almost surely, 2^13212064535 is an apocalyptic number.

13212064535 is a deficient number, since it is larger than the sum of its proper divisors (2642412913).

13212064535 is an equidigital number, since it uses as much as digits as its factorization.

13212064535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642412912.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 13212064535 its reverse (53546021231), we get a palindrome (66758085766).

The spelling of 13212064535 in words is "thirteen billion, two hundred twelve million, sixty-four thousand, five hundred thirty-five".