321244111041421 has 16 divisors (see below), whose sum is σ = 323150447904768. Its totient is φ = 319340141507200.

The previous prime is 321244111041409. The next prime is 321244111041439. The reversal of 321244111041421 is 124140111442123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 321244111041421 - 2¹¹ = 321244111039373 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 (321244111044421) 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, 5537421411 + ... + 5537479423.

It is an arithmetic number, because the mean of its divisors is an integer number (20196902994048).

Almost surely, 2^{321244111041421} is an apocalyptic number.

It is an amenable number.

321244111041421 is a deficient number, since it is larger than the sum of its proper divisors (1906336863347).

321244111041421 is a wasteful number, since it uses less digits than its factorization.

321244111041421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77852.

The product of its (nonzero) digits is 6144, while the sum is 31.

Adding to 321244111041421 its reverse (124140111442123), we get a palindrome (445384222483544).

The spelling of 321244111041421 in words is "three hundred twenty-one trillion, two hundred forty-four billion, one hundred eleven million, forty-one thousand, four hundred twenty-one".