12450415321 has 2 divisors, whose sum is σ = 12450415322. Its totient is φ = 12450415320.

The previous prime is 12450415297. The next prime is 12450415379. The reversal of 12450415321 is 12351405421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11676963600 + 773451721 = 108060^2 + 27811^2 .

It is a cyclic number.

It is not a de Polignac number, because 12450415321 - 2⁷ = 12450415193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12450415321.

It is not a weakly prime, because it can be changed into another prime (12450415421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6225207660 + 6225207661.

It is an arithmetic number, because the mean of its divisors is an integer number (6225207661).

Almost surely, 2^12450415321 is an apocalyptic number.

It is an amenable number.

12450415321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12450415321 is an equidigital number, since it uses as much as digits as its factorization.

12450415321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 12450415321 in words is "twelve billion, four hundred fifty million, four hundred fifteen thousand, three hundred twenty-one".