12021032231321 has 8 divisors (see below), whose sum is σ = 12314301973344. Its totient is φ = 11727766005280.

The previous prime is 12021032231297. The next prime is 12021032231353. The reversal of 12021032231321 is 12313223012021.

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-12021032231321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021032731321) 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, 6864386 + ... + 8435748.

It is an arithmetic number, because the mean of its divisors is an integer number (1539287746668).

Almost surely, 2^{12021032231321} is an apocalyptic number.

It is an amenable number.

12021032231321 is a deficient number, since it is larger than the sum of its proper divisors (293269742023).

12021032231321 is a wasteful number, since it uses less digits than its factorization.

12021032231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757991.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12021032231321 its reverse (12313223012021), we get a palindrome (24334255243342).

The spelling of 12021032231321 in words is "twelve trillion, twenty-one billion, thirty-two million, two hundred thirty-one thousand, three hundred twenty-one".