12321322002 has 24 divisors (see below), whose sum is σ = 29123125200. Its totient is φ = 3733733880.

The previous prime is 12321321977. The next prime is 12321322003. The reversal of 12321322002 is 20022312321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12321322003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31114252 + ... + 31114647.

It is an arithmetic number, because the mean of its divisors is an integer number (1213463550).

Almost surely, 2^12321322002 is an apocalyptic number.

12321322002 is an abundant number, since it is smaller than the sum of its proper divisors (16801803198).

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

12321322002 is a wasteful number, since it uses less digits than its factorization.

12321322002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62228918 (or 62228915 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12321322002 its reverse (20022312321), we get a palindrome (32343634323).

The spelling of 12321322002 in words is "twelve billion, three hundred twenty-one million, three hundred twenty-two thousand, two".