12301302121 has 2 divisors, whose sum is σ = 12301302122. Its totient is φ = 12301302120.

The previous prime is 12301302113. The next prime is 12301302131. The reversal of 12301302121 is 12120310321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12245635600 + 55666521 = 110660^2 + 7461^2 .

It is a cyclic number.

It is not a de Polignac number, because 12301302121 - 2³ = 12301302113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12301302095 and 12301302104.

It is not a weakly prime, because it can be changed into another prime (12301302131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6150651060 + 6150651061.

It is an arithmetic number, because the mean of its divisors is an integer number (6150651061).

Almost surely, 2^12301302121 is an apocalyptic number.

It is an amenable number.

12301302121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12301302121 is an equidigital number, since it uses as much as digits as its factorization.

12301302121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12301302121 its reverse (12120310321), we get a palindrome (24421612442).

The spelling of 12301302121 in words is "twelve billion, three hundred one million, three hundred two thousand, one hundred twenty-one".