13225105045321 has 4 divisors (see below), whose sum is σ = 14242420818052. Its totient is φ = 12207789272592.

The previous prime is 13225105045303. The next prime is 13225105045349. The reversal of 13225105045321 is 12354050152231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 517448596921 + 12707656448400 = 719339^2 + 3564780^2 .

It is a cyclic number.

It is not a de Polignac number, because 13225105045321 - 2¹³ = 13225105037129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13225105045391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508657886346 + ... + 508657886371.

It is an arithmetic number, because the mean of its divisors is an integer number (3560605204513).

Almost surely, 2^{13225105045321} is an apocalyptic number.

It is an amenable number.

13225105045321 is a deficient number, since it is larger than the sum of its proper divisors (1017315772731).

13225105045321 is a wasteful number, since it uses less digits than its factorization.

13225105045321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017315772730.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 13225105045321 its reverse (12354050152231), we get a palindrome (25579155197552).

The spelling of 13225105045321 in words is "thirteen trillion, two hundred twenty-five billion, one hundred five million, forty-five thousand, three hundred twenty-one".