321244140554111 has 4 divisors (see below), whose sum is σ = 321245572966752. Its totient is φ = 321242708141472.

The previous prime is 321244140554093. The next prime is 321244140554177. The reversal of 321244140554111 is 111455041442123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321244140554111 - 2²² = 321244136359807 is a prime.

It is a super-2 number, since 2×321244140554111² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321244640554111) 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, 715869866 + ... + 716318471.

It is an arithmetic number, because the mean of its divisors is an integer number (80311393241688).

Almost surely, 2^{321244140554111} is an apocalyptic number.

321244140554111 is a deficient number, since it is larger than the sum of its proper divisors (1432412641).

321244140554111 is a wasteful number, since it uses less digits than its factorization.

321244140554111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432412640.

The product of its (nonzero) digits is 76800, while the sum is 38.

Adding to 321244140554111 its reverse (111455041442123), we get a palindrome (432699181996234).

The spelling of 321244140554111 in words is "three hundred twenty-one trillion, two hundred forty-four billion, one hundred forty million, five hundred fifty-four thousand, one hundred eleven".