13253512213321 has 4 divisors (see below), whose sum is σ = 13253695778500. Its totient is φ = 13253328648144.

The previous prime is 13253512213303. The next prime is 13253512213339. The reversal of 13253512213321 is 12331221535231.

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

It is an interprime number because it is at equal distance from previous prime (13253512213303) and next prime (13253512213339).

It can be written as a sum of positive squares in 2 ways, for example, as 7142550228025 + 6110961985296 = 2672555^2 + 2472036^2 .

It is a cyclic number.

It is not a de Polignac number, because 13253512213321 - 2⁵ = 13253512213289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13253512213621) 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, 91674246 + ... + 91818703.

It is an arithmetic number, because the mean of its divisors is an integer number (3313423944625).

Almost surely, 2^{13253512213321} is an apocalyptic number.

It is an amenable number.

13253512213321 is a deficient number, since it is larger than the sum of its proper divisors (183565179).

13253512213321 is an equidigital number, since it uses as much as digits as its factorization.

13253512213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183565178.

The product of its digits is 32400, while the sum is 34.

Adding to 13253512213321 its reverse (12331221535231), we get a palindrome (25584733748552).

The spelling of 13253512213321 in words is "thirteen trillion, two hundred fifty-three billion, five hundred twelve million, two hundred thirteen thousand, three hundred twenty-one".