13532406321 has 32 divisors (see below), whose sum is σ = 21178137600. Its totient is φ = 7526404800.

The previous prime is 13532406287. The next prime is 13532406323. The reversal of 13532406321 is 12360423531.

It is not a de Polignac number, because 13532406321 - 2⁶ = 13532406257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13532406323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71070 + ... + 179208.

It is an arithmetic number, because the mean of its divisors is an integer number (661816800).

Almost surely, 2^13532406321 is an apocalyptic number.

It is an amenable number.

13532406321 is a deficient number, since it is larger than the sum of its proper divisors (7645731279).

13532406321 is a wasteful number, since it uses less digits than its factorization.

13532406321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108309.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 13532406321 its reverse (12360423531), we get a palindrome (25892829852).

The spelling of 13532406321 in words is "thirteen billion, five hundred thirty-two million, four hundred six thousand, three hundred twenty-one".