321440221243111 has 16 divisors (see below), whose sum is σ = 327318336938880. Its totient is φ = 315609965580960.

The previous prime is 321440221243087. The next prime is 321440221243177. The reversal of 321440221243111 is 111342122044123.

It is a cyclic number.

It is not a de Polignac number, because 321440221243111 - 2⁹ = 321440221242599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321440221243411) 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, 488487505 + ... + 489145093.

It is an arithmetic number, because the mean of its divisors is an integer number (20457396058680).

Almost surely, 2^{321440221243111} is an apocalyptic number.

321440221243111 is a deficient number, since it is larger than the sum of its proper divisors (5878115695769).

321440221243111 is a wasteful number, since it uses less digits than its factorization.

321440221243111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693966.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 321440221243111 its reverse (111342122044123), we get a palindrome (432782343287234).

The spelling of 321440221243111 in words is "three hundred twenty-one trillion, four hundred forty billion, two hundred twenty-one million, two hundred forty-three thousand, one hundred eleven".