321213404003 has 8 divisors (see below), whose sum is σ = 321678888960. Its totient is φ = 320748021000.

The previous prime is 321213403999. The next prime is 321213404011. The reversal of 321213404003 is 300404312123.

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

It is a cyclic number.

It is not a de Polignac number, because 321213404003 - 2² = 321213403999 is a prime.

It is a super-2 number, since 2×321213404003² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321213404003.

It is not an unprimeable number, because it can be changed into a prime (321213404803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8141438 + ... + 8180796.

It is an arithmetic number, because the mean of its divisors is an integer number (40209861120).

Almost surely, 2^321213404003 is an apocalyptic number.

321213404003 is a deficient number, since it is larger than the sum of its proper divisors (465484957).

321213404003 is a wasteful number, since it uses less digits than its factorization.

321213404003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50977.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 321213404003 its reverse (300404312123), we get a palindrome (621617716126).

The spelling of 321213404003 in words is "three hundred twenty-one billion, two hundred thirteen million, four hundred four thousand, three".