321213404341400 has 24 divisors (see below), whose sum is σ = 746821165094220. Its totient is φ = 128485361736480.

The previous prime is 321213404341397. The next prime is 321213404341471. The reversal of 321213404341400 is 4143404312123.

It is a super-2 number, since 2×321213404341400² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 803033510654 + ... + 803033511053.

Almost surely, 2^{321213404341400} is an apocalyptic number.

It is an amenable number.

321213404341400 is an abundant number, since it is smaller than the sum of its proper divisors (425607760752820).

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

321213404341400 is a wasteful number, since it uses less digits than its factorization.

321213404341400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606067021723 (or 1606067021714 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 321213404341400 its reverse (4143404312123), we get a palindrome (325356808653523).

The spelling of 321213404341400 in words is "three hundred twenty-one trillion, two hundred thirteen billion, four hundred four million, three hundred forty-one thousand, four hundred".