13133121323321 has 4 divisors (see below), whose sum is σ = 13704126598272. Its totient is φ = 12562116048372.

The previous prime is 13133121323303. The next prime is 13133121323347. The reversal of 13133121323321 is 12332312133131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13133121323321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13133121323221) 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 3 ways as a sum of consecutive naturals, for example, 285502637441 + ... + 285502637486.

It is an arithmetic number, because the mean of its divisors is an integer number (3426031649568).

Almost surely, 2^{13133121323321} is an apocalyptic number.

It is an amenable number.

13133121323321 is a deficient number, since it is larger than the sum of its proper divisors (571005274951).

13133121323321 is an equidigital number, since it uses as much as digits as its factorization.

13133121323321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571005274950.

The product of its digits is 5832, while the sum is 29.

Adding to 13133121323321 its reverse (12332312133131), we get a palindrome (25465433456452).

The spelling of 13133121323321 in words is "thirteen trillion, one hundred thirty-three billion, one hundred twenty-one million, three hundred twenty-three thousand, three hundred twenty-one".