12454012321 has 2 divisors, whose sum is σ = 12454012322. Its totient is φ = 12454012320.

The previous prime is 12454012297. The next prime is 12454012339. The reversal of 12454012321 is 12321045421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9572469921 + 2881542400 = 97839^2 + 53680^2 .

It is a cyclic number.

It is not a de Polignac number, because 12454012321 - 2⁹ = 12454011809 is a prime.

It is not a weakly prime, because it can be changed into another prime (12454012621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6227006160 + 6227006161.

It is an arithmetic number, because the mean of its divisors is an integer number (6227006161).

Almost surely, 2^12454012321 is an apocalyptic number.

It is an amenable number.

12454012321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12454012321 is an equidigital number, since it uses as much as digits as its factorization.

12454012321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12454012321 its reverse (12321045421), we get a palindrome (24775057742).

The spelling of 12454012321 in words is "twelve billion, four hundred fifty-four million, twelve thousand, three hundred twenty-one".