12321210029 has 2 divisors, whose sum is σ = 12321210030. Its totient is φ = 12321210028.

The previous prime is 12321210017. The next prime is 12321210047. The reversal of 12321210029 is 92001212321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10832021929 + 1489188100 = 104077^2 + 38590^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321210029 - 2¹² = 12321205933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12321209986 and 12321210013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321210089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160605014 + 6160605015.

It is an arithmetic number, because the mean of its divisors is an integer number (6160605015).

Almost surely, 2^12321210029 is an apocalyptic number.

It is an amenable number.

12321210029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321210029 is an equidigital number, since it uses as much as digits as its factorization.

12321210029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 12321210029 in words is "twelve billion, three hundred twenty-one million, two hundred ten thousand, twenty-nine".