12021320423003 has 2 divisors, whose sum is σ = 12021320423004. Its totient is φ = 12021320423002.

The previous prime is 12021320422849. The next prime is 12021320423017. The reversal of 12021320423003 is 30032402312021.

It is a strong prime.

It is an emirp because it is prime and its reverse (30032402312021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12021320423003 - 2²⁶ = 12021253314139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12021320423003.

It is not a weakly prime, because it can be changed into another prime (12021320423023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010660211501 + 6010660211502.

It is an arithmetic number, because the mean of its divisors is an integer number (6010660211502).

Almost surely, 2^{12021320423003} is an apocalyptic number.

12021320423003 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021320423003 is an equidigital number, since it uses as much as digits as its factorization.

12021320423003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12021320423003 its reverse (30032402312021), we get a palindrome (42053722735024).

The spelling of 12021320423003 in words is "twelve trillion, twenty-one billion, three hundred twenty million, four hundred twenty-three thousand, three".