13201351435531 has 24 divisors (see below), whose sum is σ = 16489022160096. Its totient is φ = 10499832080640.

The previous prime is 13201351435513. The next prime is 13201351435549. The reversal of 13201351435531 is 13553415310231.

It is an interprime number because it is at equal distance from previous prime (13201351435513) and next prime (13201351435549).

It is not a de Polignac number, because 13201351435531 - 2⁷ = 13201351435403 is a prime.

It is a super-2 number, since 2×13201351435531² (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 (13201351435501) 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, 111546216 + ... + 111664501.

It is an arithmetic number, because the mean of its divisors is an integer number (687042590004).

Almost surely, 2^{13201351435531} is an apocalyptic number.

13201351435531 is a deficient number, since it is larger than the sum of its proper divisors (3287670724565).

13201351435531 is a wasteful number, since it uses less digits than its factorization.

13201351435531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223210819 (or 223210812 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

Adding to 13201351435531 its reverse (13553415310231), we get a palindrome (26754766745762).

The spelling of 13201351435531 in words is "thirteen trillion, two hundred one billion, three hundred fifty-one million, four hundred thirty-five thousand, five hundred thirty-one".