12321322032 has 40 divisors (see below), whose sum is σ = 31836533760. Its totient is φ = 4106274880.

The previous prime is 12321322007. The next prime is 12321322051. The reversal of 12321322032 is 23022312321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241657 + ... + 288167.

It is an arithmetic number, because the mean of its divisors is an integer number (795913344).

Almost surely, 2^12321322032 is an apocalyptic number.

12321322032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12321322032 is an abundant number, since it is smaller than the sum of its proper divisors (19515211728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12321322032 is a wasteful number, since it uses less digits than its factorization.

12321322032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52041 (or 52035 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12321322032 its reverse (23022312321), we get a palindrome (35343634353).

The spelling of 12321322032 in words is "twelve billion, three hundred twenty-one million, three hundred twenty-two thousand, thirty-two".