12321311032 has 32 divisors (see below), whose sum is σ = 23440250880. Its totient is φ = 6070669920.

The previous prime is 12321311003. The next prime is 12321311039. The reversal of 12321311032 is 23011312321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321311039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348993 + ... + 1358095.

It is an arithmetic number, because the mean of its divisors is an integer number (732507840).

Almost surely, 2^12321311032 is an apocalyptic number.

It is an amenable number.

12321311032 is a deficient number, since it is larger than the sum of its proper divisors (11118939848).

12321311032 is a wasteful number, since it uses less digits than its factorization.

12321311032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11563 (or 11559 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12321311032 its reverse (23011312321), we get a palindrome (35332623353).

The spelling of 12321311032 in words is "twelve billion, three hundred twenty-one million, three hundred eleven thousand, thirty-two".