12403143421232 has 20 divisors (see below), whose sum is σ = 24061242336096. Its totient is φ = 6193790560320.

The previous prime is 12403143421231. The next prime is 12403143421243. The reversal of 12403143421232 is 23212434130421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12403143421231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486308744 + ... + 486334247.

Almost surely, 2^{12403143421232} is an apocalyptic number.

It is an amenable number.

12403143421232 is a deficient number, since it is larger than the sum of its proper divisors (11658098914864).

12403143421232 is an equidigital number, since it uses as much as digits as its factorization.

12403143421232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972643796 (or 972643790 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 12403143421232 its reverse (23212434130421), we get a palindrome (35615577551653).

The spelling of 12403143421232 in words is "twelve trillion, four hundred three billion, one hundred forty-three million, four hundred twenty-one thousand, two hundred thirty-two".