13321210232121 has 8 divisors (see below), whose sum is σ = 19376305792224. Its totient is φ = 8073460746720.

The previous prime is 13321210232111. The next prime is 13321210232137. The reversal of 13321210232121 is 12123201212331.

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

It is not a de Polignac number, because 13321210232121 - 2¹⁷ = 13321210101049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13321210232091 and 13321210232100.

It is not an unprimeable number, because it can be changed into a prime (13321210232111) 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, 201836518636 + ... + 201836518701.

It is an arithmetic number, because the mean of its divisors is an integer number (2422038224028).

Almost surely, 2^{13321210232121} is an apocalyptic number.

13321210232121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13321210232121 is a deficient number, since it is larger than the sum of its proper divisors (6055095560103).

13321210232121 is a wasteful number, since it uses less digits than its factorization.

13321210232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403673037351.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 13321210232121 its reverse (12123201212331), we get a palindrome (25444411444452).

The spelling of 13321210232121 in words is "thirteen trillion, three hundred twenty-one billion, two hundred ten million, two hundred thirty-two thousand, one hundred twenty-one".