12402343441 has 2 divisors, whose sum is σ = 12402343442. Its totient is φ = 12402343440.

The previous prime is 12402343439. The next prime is 12402343453. The reversal of 12402343441 is 14434320421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9073515025 + 3328828416 = 95255^2 + 57696^2 .

It is a cyclic number.

It is not a de Polignac number, because 12402343441 - 2¹ = 12402343439 is a prime.

Together with 12402343439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12402343411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201171720 + 6201171721.

It is an arithmetic number, because the mean of its divisors is an integer number (6201171721).

Almost surely, 2^12402343441 is an apocalyptic number.

It is an amenable number.

12402343441 is a deficient number, since it is larger than the sum of its proper divisors (1).

12402343441 is an equidigital number, since it uses as much as digits as its factorization.

12402343441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12402343441 its reverse (14434320421), we get a palindrome (26836663862).

The spelling of 12402343441 in words is "twelve billion, four hundred two million, three hundred forty-three thousand, four hundred forty-one".