13123210020321 has 8 divisors (see below), whose sum is σ = 17498355917184. Its totient is φ = 8748435401840.

The previous prime is 13123210020289. The next prime is 13123210020341. The reversal of 13123210020321 is 12302001232131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13123210020321 - 2⁵ = 13123210020289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13123210020341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92737110 + ... + 92878511.

It is an arithmetic number, because the mean of its divisors is an integer number (2187294489648).

Almost surely, 2^{13123210020321} is an apocalyptic number.

It is an amenable number.

13123210020321 is a deficient number, since it is larger than the sum of its proper divisors (4375145896863).

13123210020321 is a wasteful number, since it uses less digits than its factorization.

13123210020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185639191.

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

Adding to 13123210020321 its reverse (12302001232131), we get a palindrome (25425211252452).

The spelling of 13123210020321 in words is "thirteen trillion, one hundred twenty-three billion, two hundred ten million, twenty thousand, three hundred twenty-one".