12403323412 has 12 divisors (see below), whose sum is σ = 21897903636. Its totient is φ = 6146779520.

The previous prime is 12403323407. The next prime is 12403323419. The reversal of 12403323412 is 21432330421.

It can be written as a sum of positive squares in 2 ways, for example, as 6517978756 + 5885344656 = 80734^2 + 76716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403323419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13720039 + ... + 13720942.

It is an arithmetic number, because the mean of its divisors is an integer number (1824825303).

Almost surely, 2^12403323412 is an apocalyptic number.

It is an amenable number.

12403323412 is a deficient number, since it is larger than the sum of its proper divisors (9494580224).

12403323412 is a wasteful number, since it uses less digits than its factorization.

12403323412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27441098 (or 27441096 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12403323412 its reverse (21432330421), we get a palindrome (33835653833).

The spelling of 12403323412 in words is "twelve billion, four hundred three million, three hundred twenty-three thousand, four hundred twelve".