12623343005 has 24 divisors (see below), whose sum is σ = 18976634712. Its totient is φ = 7990157952.

The previous prime is 12623343001. The next prime is 12623343041. The reversal of 12623343005 is 50034332621.

It can be written as a sum of positive squares in 4 ways, for example, as 209149444 + 12414193561 = 14462^2 + 111419^2 .

It is not a de Polignac number, because 12623343005 - 2² = 12623343001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12623343001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1978502 + ... + 1984871.

It is an arithmetic number, because the mean of its divisors is an integer number (790693113).

Almost surely, 2^12623343005 is an apocalyptic number.

It is an amenable number.

12623343005 is a deficient number, since it is larger than the sum of its proper divisors (6353291707).

12623343005 is a wasteful number, since it uses less digits than its factorization.

12623343005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963405 (or 3963398 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 12623343005 its reverse (50034332621), we get a palindrome (62657675626).

The spelling of 12623343005 in words is "twelve billion, six hundred twenty-three million, three hundred forty-three thousand, five".