321312132002 has 8 divisors (see below), whose sum is σ = 482059202796. Its totient is φ = 160625731072.

The previous prime is 321312131993. The next prime is 321312132013. The reversal of 321312132002 is 200231213123.

It can be written as a sum of positive squares in 2 ways, for example, as 307227426961 + 14084705041 = 554281^2 + 118679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 15154223 + ... + 15175410.

Almost surely, 2^321312132002 is an apocalyptic number.

321312132002 is a deficient number, since it is larger than the sum of its proper divisors (160747070794).

321312132002 is a wasteful number, since it uses less digits than its factorization.

321312132002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30334932.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 321312132002 its reverse (200231213123), we get a palindrome (521543345125).

The spelling of 321312132002 in words is "three hundred twenty-one billion, three hundred twelve million, one hundred thirty-two thousand, two".