13121230313321 has 8 divisors (see below), whose sum is σ = 14329577634624. Its totient is φ = 11941314693840.

The previous prime is 13121230313311. The next prime is 13121230313327. The reversal of 13121230313321 is 12331303212131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13121230313321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13121230313327) 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, 7107924491 + ... + 7107926336.

It is an arithmetic number, because the mean of its divisors is an integer number (1791197204328).

Almost surely, 2^{13121230313321} is an apocalyptic number.

It is an amenable number.

13121230313321 is a deficient number, since it is larger than the sum of its proper divisors (1208347321303).

13121230313321 is a wasteful number, since it uses less digits than its factorization.

13121230313321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14215850911.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 13121230313321 its reverse (12331303212131), we get a palindrome (25452533525452).

The spelling of 13121230313321 in words is "thirteen trillion, one hundred twenty-one billion, two hundred thirty million, three hundred thirteen thousand, three hundred twenty-one".