2231100321 has 8 divisors (see below), whose sum is σ = 3047356704. Its totient is φ = 1451122080.

The previous prime is 2231100271. The next prime is 2231100323. The reversal of 2231100321 is 1230011322.

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

It is not a de Polignac number, because 2231100321 - 2¹⁸ = 2230838177 is a prime.

It is a super-3 number, since 3×2231100321³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231100321.

It is not an unprimeable number, because it can be changed into a prime (2231100323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9069391 + ... + 9069636.

It is an arithmetic number, because the mean of its divisors is an integer number (380919588).

Almost surely, 2^2231100321 is an apocalyptic number.

It is an amenable number.

2231100321 is a deficient number, since it is larger than the sum of its proper divisors (816256383).

2231100321 is a wasteful number, since it uses less digits than its factorization.

2231100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18139071.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2231100321 is about 47234.5246721082. The cubic root of 2231100321 is about 1306.6914003009.

Adding to 2231100321 its reverse (1230011322), we get a palindrome (3461111643).

The spelling of 2231100321 in words is "two billion, two hundred thirty-one million, one hundred thousand, three hundred twenty-one".