13432110321 has 16 divisors (see below), whose sum is σ = 20541878144. Its totient is φ = 7647778944.

The previous prime is 13432110317. The next prime is 13432110343. The reversal of 13432110321 is 12301123431.

It is not a de Polignac number, because 13432110321 - 2² = 13432110317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13432110371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1148740 + ... + 1160373.

It is an arithmetic number, because the mean of its divisors is an integer number (1283867384).

Almost surely, 2^13432110321 is an apocalyptic number.

It is an amenable number.

13432110321 is a deficient number, since it is larger than the sum of its proper divisors (7109767823).

13432110321 is a wasteful number, since it uses less digits than its factorization.

13432110321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309400.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13432110321 its reverse (12301123431), we get a palindrome (25733233752).

It can be divided in two parts, 13432 and 110321, that added together give a triangular number (123753 = T₄₉₇).

The spelling of 13432110321 in words is "thirteen billion, four hundred thirty-two million, one hundred ten thousand, three hundred twenty-one".