321203200400011 has 32 divisors (see below), whose sum is σ = 343442587783680. Its totient is φ = 299345950425600.

The previous prime is 321203200399999. The next prime is 321203200400063. The reversal of 321203200400011 is 110004002302123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 321203200400011 - 2¹⁵ = 321203200367243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321203200404011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3709557460 + ... + 3709644046.

It is an arithmetic number, because the mean of its divisors is an integer number (10732580868240).

Almost surely, 2^{321203200400011} is an apocalyptic number.

321203200400011 is a deficient number, since it is larger than the sum of its proper divisors (22239387383669).

321203200400011 is a wasteful number, since it uses less digits than its factorization.

321203200400011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90355.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 321203200400011 its reverse (110004002302123), we get a palindrome (431207202702134).

The spelling of 321203200400011 in words is "three hundred twenty-one trillion, two hundred three billion, two hundred million, four hundred thousand, eleven".