12032321111021 has 2 divisors, whose sum is σ = 12032321111022. Its totient is φ = 12032321111020.

The previous prime is 12032321111017. The next prime is 12032321111071. The reversal of 12032321111021 is 12011112323021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8986385152900 + 3045935958121 = 2997730^2 + 1745261^2 .

It is a cyclic number.

It is not a de Polignac number, because 12032321111021 - 2² = 12032321111017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12032321110984 and 12032321111002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12032321111071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6016160555510 + 6016160555511.

It is an arithmetic number, because the mean of its divisors is an integer number (6016160555511).

Almost surely, 2^{12032321111021} is an apocalyptic number.

It is an amenable number.

12032321111021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12032321111021 is an equidigital number, since it uses as much as digits as its factorization.

12032321111021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12032321111021 its reverse (12011112323021), we get a palindrome (24043433434042).

The spelling of 12032321111021 in words is "twelve trillion, thirty-two billion, three hundred twenty-one million, one hundred eleven thousand, twenty-one".