13201345053531 has 24 divisors (see below), whose sum is σ = 19310863470080. Its totient is φ = 8689097332656.

The previous prime is 13201345053451. The next prime is 13201345053551. The reversal of 13201345053531 is 13535054310231.

13201345053531 is a `hidden beast` number, since 1 + 3 + 20 + 1 + 3 + 4 + 50 + 53 + 531 = 666.

13201345053531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13201345053531 - 2¹⁴ = 13201345037147 is a prime.

It is a super-2 number, since 2×13201345053531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13201345053551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15633756 + ... + 16456518.

Almost surely, 2^{13201345053531} is an apocalyptic number.

13201345053531 is a deficient number, since it is larger than the sum of its proper divisors (6109518416549).

13201345053531 is a wasteful number, since it uses less digits than its factorization.

13201345053531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845415 (or 845412 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 13201345053531 its reverse (13535054310231), we get a palindrome (26736399363762).

The spelling of 13201345053531 in words is "thirteen trillion, two hundred one billion, three hundred forty-five million, fifty-three thousand, five hundred thirty-one".