12232030021 has 2 divisors, whose sum is σ = 12232030022. Its totient is φ = 12232030020.

The previous prime is 12232029967. The next prime is 12232030049. The reversal of 12232030021 is 12003023221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12225724900 + 6305121 = 110570^2 + 2511^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232030021 - 2¹³ = 12232021829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12232029977 and 12232030004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12232030051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116015010 + 6116015011.

It is an arithmetic number, because the mean of its divisors is an integer number (6116015011).

Almost surely, 2^12232030021 is an apocalyptic number.

It is an amenable number.

12232030021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232030021 is an equidigital number, since it uses as much as digits as its factorization.

12232030021 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 16.

Adding to 12232030021 its reverse (12003023221), we get a palindrome (24235053242).

The spelling of 12232030021 in words is "twelve billion, two hundred thirty-two million, thirty thousand, twenty-one".