221303131322311 has 8 divisors (see below), whose sum is σ = 221784075780624. Its totient is φ = 220822402107840.

The previous prime is 221303131322303. The next prime is 221303131322359. The reversal of 221303131322311 is 113223131303122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221303131322311 - 2³ = 221303131322303 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 221303131322311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221303131322381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51752340 + ... + 55865113.

It is an arithmetic number, because the mean of its divisors is an integer number (27723009472578).

Almost surely, 2^{221303131322311} is an apocalyptic number.

221303131322311 is a deficient number, since it is larger than the sum of its proper divisors (480944458313).

221303131322311 is a wasteful number, since it uses less digits than its factorization.

221303131322311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107621921.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 221303131322311 its reverse (113223131303122), we get a palindrome (334526262625433).

The spelling of 221303131322311 in words is "two hundred twenty-one trillion, three hundred three billion, one hundred thirty-one million, three hundred twenty-two thousand, three hundred eleven".