12445213423 has 2 divisors, whose sum is σ = 12445213424. Its totient is φ = 12445213422.

The previous prime is 12445213397. The next prime is 12445213453. The reversal of 12445213423 is 32431254421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12445213423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12445213453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222606711 + 6222606712.

It is an arithmetic number, because the mean of its divisors is an integer number (6222606712).

Almost surely, 2^12445213423 is an apocalyptic number.

12445213423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445213423 is an equidigital number, since it uses as much as digits as its factorization.

12445213423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 31.

Adding to 12445213423 its reverse (32431254421), we get a palindrome (44876467844).

The spelling of 12445213423 in words is "twelve billion, four hundred forty-five million, two hundred thirteen thousand, four hundred twenty-three".