321213433101406 has 32 divisors (see below), whose sum is σ = 492772745469888. Its totient is φ = 157005419558400.

The previous prime is 321213433101377. The next prime is 321213433101413. The reversal of 321213433101406 is 604101334312123.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15894165 + ... + 29917408.

It is an arithmetic number, because the mean of its divisors is an integer number (15399148295934).

Almost surely, 2^{321213433101406} is an apocalyptic number.

321213433101406 is a deficient number, since it is larger than the sum of its proper divisors (171559312368482).

321213433101406 is a wasteful number, since it uses less digits than its factorization.

321213433101406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45812116.

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 321213433101406 its reverse (604101334312123), we get a palindrome (925314767413529).

The spelling of 321213433101406 in words is "three hundred twenty-one trillion, two hundred thirteen billion, four hundred thirty-three million, one hundred one thousand, four hundred six".