12321132002 has 4 divisors (see below), whose sum is σ = 18481698006. Its totient is φ = 6160566000.

The previous prime is 12321131981. The next prime is 12321132029. The reversal of 12321132002 is 20023112321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8423751961 + 3897380041 = 91781^2 + 62429^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3080282999 + ... + 3080283002.

Almost surely, 2^12321132002 is an apocalyptic number.

12321132002 is a deficient number, since it is larger than the sum of its proper divisors (6160566004).

12321132002 is an equidigital number, since it uses as much as digits as its factorization.

12321132002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160566003.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12321132002 its reverse (20023112321), we get a palindrome (32344244323).

The spelling of 12321132002 in words is "twelve billion, three hundred twenty-one million, one hundred thirty-two thousand, two".