321201332011 has 4 divisors (see below), whose sum is σ = 367087236592. Its totient is φ = 275315427432.

The previous prime is 321201332009. The next prime is 321201332099. The reversal of 321201332011 is 110233102123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110233102123 = 19 ⋅5801742217.

It is a cyclic number.

It is not a de Polignac number, because 321201332011 - 2¹ = 321201332009 is a prime.

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 321201332011.

It is not an unprimeable number, because it can be changed into a prime (321201332411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22942952280 + ... + 22942952293.

It is an arithmetic number, because the mean of its divisors is an integer number (91771809148).

Almost surely, 2^321201332011 is an apocalyptic number.

321201332011 is a deficient number, since it is larger than the sum of its proper divisors (45885904581).

321201332011 is an equidigital number, since it uses as much as digits as its factorization.

321201332011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45885904580.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321201332011 its reverse (110233102123), we get a palindrome (431434434134).

The spelling of 321201332011 in words is "three hundred twenty-one billion, two hundred one million, three hundred thirty-two thousand, eleven".