12402322073 has 2 divisors, whose sum is σ = 12402322074. Its totient is φ = 12402322072.

The previous prime is 12402322063. The next prime is 12402322123. The reversal of 12402322073 is 37022320421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11089564249 + 1312757824 = 105307^2 + 36232^2 .

It is an emirp because it is prime and its reverse (37022320421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12402322073 - 2²⁰ = 12401273497 is a prime.

It is not a weakly prime, because it can be changed into another prime (12402322043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201161036 + 6201161037.

It is an arithmetic number, because the mean of its divisors is an integer number (6201161037).

Almost surely, 2^12402322073 is an apocalyptic number.

It is an amenable number.

12402322073 is a deficient number, since it is larger than the sum of its proper divisors (1).

12402322073 is an equidigital number, since it uses as much as digits as its factorization.

12402322073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

Adding to 12402322073 its reverse (37022320421), we get a palindrome (49424642494).

The spelling of 12402322073 in words is "twelve billion, four hundred two million, three hundred twenty-two thousand, seventy-three".