13251321445 has 16 divisors (see below), whose sum is σ = 15998486400. Its totient is φ = 10536571584.

The previous prime is 13251321443. The next prime is 13251321467. The reversal of 13251321445 is 54412315231.

It is a cyclic number.

It is not a de Polignac number, because 13251321445 - 2¹ = 13251321443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13251321443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1001362 + ... + 1014508.

It is an arithmetic number, because the mean of its divisors is an integer number (999905400).

Almost surely, 2^13251321445 is an apocalyptic number.

It is an amenable number.

13251321445 is a deficient number, since it is larger than the sum of its proper divisors (2747164955).

13251321445 is a wasteful number, since it uses less digits than its factorization.

13251321445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14364.

The product of its digits is 14400, while the sum is 31.

Adding to 13251321445 its reverse (54412315231), we get a palindrome (67663636676).

The spelling of 13251321445 in words is "thirteen billion, two hundred fifty-one million, three hundred twenty-one thousand, four hundred forty-five".