12121323307 has 2 divisors, whose sum is σ = 12121323308. Its totient is φ = 12121323306.

The previous prime is 12121323301. The next prime is 12121323329. The reversal of 12121323307 is 70332312121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12121323307 - 2¹¹ = 12121321259 is a prime.

It is not a weakly prime, because it can be changed into another prime (12121323301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060661653 + 6060661654.

It is an arithmetic number, because the mean of its divisors is an integer number (6060661654).

Almost surely, 2^12121323307 is an apocalyptic number.

12121323307 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121323307 is an equidigital number, since it uses as much as digits as its factorization.

12121323307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 12121323307 its reverse (70332312121), we get a palindrome (82453635428).

The spelling of 12121323307 in words is "twelve billion, one hundred twenty-one million, three hundred twenty-three thousand, three hundred seven".