12123330403 has 2 divisors, whose sum is σ = 12123330404. Its totient is φ = 12123330402.

The previous prime is 12123330391. The next prime is 12123330407. The reversal of 12123330403 is 30403332121.

It is a strong prime.

It is an emirp because it is prime and its reverse (30403332121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12123330403 is a prime.

It is not a weakly prime, because it can be changed into another prime (12123330407) 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, 6061665201 + 6061665202.

It is an arithmetic number, because the mean of its divisors is an integer number (6061665202).

Almost surely, 2^12123330403 is an apocalyptic number.

12123330403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123330403 is an equidigital number, since it uses as much as digits as its factorization.

12123330403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12123330403 its reverse (30403332121), we get a palindrome (42526662524).

The spelling of 12123330403 in words is "twelve billion, one hundred twenty-three million, three hundred thirty thousand, four hundred three".