12101232231321 has 4 divisors (see below), whose sum is σ = 16134976308432. Its totient is φ = 8067488154212.

The previous prime is 12101232231307. The next prime is 12101232231359. The reversal of 12101232231321 is 12313223210121.

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 not a de Polignac number, because 12101232231321 - 2¹⁵ = 12101232198553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12101232231291 and 12101232231300.

It is not an unprimeable number, because it can be changed into a prime (12101232231371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2016872038551 + ... + 2016872038556.

It is an arithmetic number, because the mean of its divisors is an integer number (4033744077108).

Almost surely, 2^{12101232231321} is an apocalyptic number.

It is an amenable number.

12101232231321 is a deficient number, since it is larger than the sum of its proper divisors (4033744077111).

12101232231321 is an equidigital number, since it uses as much as digits as its factorization.

12101232231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033744077110.

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

Adding to 12101232231321 its reverse (12313223210121), we get a palindrome (24414455441442).

The spelling of 12101232231321 in words is "twelve trillion, one hundred one billion, two hundred thirty-two million, two hundred thirty-one thousand, three hundred twenty-one".