12210320123 has 2 divisors, whose sum is σ = 12210320124. Its totient is φ = 12210320122.

The previous prime is 12210320081. The next prime is 12210320137. The reversal of 12210320123 is 32102301221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12210320123 - 2⁸ = 12210319867 is a prime.

It is a super-2 number, since 2×12210320123² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12210320183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105160061 + 6105160062.

It is an arithmetic number, because the mean of its divisors is an integer number (6105160062).

Almost surely, 2^12210320123 is an apocalyptic number.

12210320123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210320123 is an equidigital number, since it uses as much as digits as its factorization.

12210320123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12210320123 its reverse (32102301221), we get a palindrome (44312621344).

The spelling of 12210320123 in words is "twelve billion, two hundred ten million, three hundred twenty thousand, one hundred twenty-three".