2231133331 has 8 divisors (see below), whose sum is σ = 2660730624. Its totient is φ = 1829252040.

The previous prime is 2231133319. The next prime is 2231133347. The reversal of 2231133331 is 1333311322.

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

It is not a de Polignac number, because 2231133331 - 2¹¹ = 2231131283 is a prime.

It is a super-3 number, since 3×2231133331³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231133361) 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, 6928825 + ... + 6929146.

It is an arithmetic number, because the mean of its divisors is an integer number (332591328).

Almost surely, 2^2231133331 is an apocalyptic number.

2231133331 is a deficient number, since it is larger than the sum of its proper divisors (429597293).

2231133331 is a wasteful number, since it uses less digits than its factorization.

2231133331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13858001.

The product of its digits is 972, while the sum is 22.

The square root of 2231133331 is about 47234.8740974293. The cubic root of 2231133331 is about 1306.6978446055.

Adding to 2231133331 its reverse (1333311322), we get a palindrome (3564444653).

The spelling of 2231133331 in words is "two billion, two hundred thirty-one million, one hundred thirty-three thousand, three hundred thirty-one".