321213423104201 has 16 divisors (see below), whose sum is σ = 323606794764288. Its totient is φ = 318828691760400.

The previous prime is 321213423104117. The next prime is 321213423104227. The reversal of 321213423104201 is 102401324312123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 321213423104201 - 2⁴² = 316815376593097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321213423104251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1139758616 + ... + 1140040406.

It is an arithmetic number, because the mean of its divisors is an integer number (20225424672768).

Almost surely, 2^{321213423104201} is an apocalyptic number.

It is an amenable number.

321213423104201 is a deficient number, since it is larger than the sum of its proper divisors (2393371660087).

321213423104201 is a wasteful number, since it uses less digits than its factorization.

321213423104201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297092.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 321213423104201 its reverse (102401324312123), we get a palindrome (423614747416324).

The spelling of 321213423104201 in words is "three hundred twenty-one trillion, two hundred thirteen billion, four hundred twenty-three million, one hundred four thousand, two hundred one".