1232302321021 has 2 divisors, whose sum is σ = 1232302321022. Its totient is φ = 1232302321020.

The previous prime is 1232302321013. The next prime is 1232302321037. The reversal of 1232302321021 is 1201232032321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 900999624100 + 331302696921 = 949210^2 + 575589^2 .

It is an emirp because it is prime and its reverse (1201232032321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1232302321021 - 2³ = 1232302321013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1232302320983 and 1232302321001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232302321721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616151160510 + 616151160511.

It is an arithmetic number, because the mean of its divisors is an integer number (616151160511).

Almost surely, 2^{1232302321021} is an apocalyptic number.

It is an amenable number.

1232302321021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232302321021 is an equidigital number, since it uses as much as digits as its factorization.

1232302321021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1232302321021 its reverse (1201232032321), we get a palindrome (2433534353342).

The spelling of 1232302321021 in words is "one trillion, two hundred thirty-two billion, three hundred two million, three hundred twenty-one thousand, twenty-one".