12321001002 has 16 divisors (see below), whose sum is σ = 24953927040. Its totient is φ = 4055012832.

The previous prime is 12321000997. The next prime is 12321001027. The reversal of 12321001002 is 20010012321.

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, 12996363 + ... + 12997310.

It is an arithmetic number, because the mean of its divisors is an integer number (1559620440).

Almost surely, 2^12321001002 is an apocalyptic number.

12321001002 is an abundant number, since it is smaller than the sum of its proper divisors (12632926038).

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

12321001002 is a wasteful number, since it uses less digits than its factorization.

12321001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25993757.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12321001002 its reverse (20010012321), we get a palindrome (32331013323).

The spelling of 12321001002 in words is "twelve billion, three hundred twenty-one million, one thousand, two".