2231312133 has 8 divisors (see below), whose sum is σ = 3104434368. Its totient is φ = 1422865664.

The previous prime is 2231312131. The next prime is 2231312143. The reversal of 2231312133 is 3312131322.

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 2231312133 - 2¹ = 2231312131 is a prime.

It is a super-3 number, since 3×2231312133³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231312131) 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, 16168860 + ... + 16168997.

It is an arithmetic number, because the mean of its divisors is an integer number (388054296).

Almost surely, 2^2231312133 is an apocalyptic number.

2231312133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2231312133 is a deficient number, since it is larger than the sum of its proper divisors (873122235).

2231312133 is a wasteful number, since it uses less digits than its factorization.

2231312133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32337883.

The product of its digits is 648, while the sum is 21.

The square root of 2231312133 is about 47236.7667500645. The cubic root of 2231312133 is about 1306.7327497281.

Adding to 2231312133 its reverse (3312131322), we get a palindrome (5543443455).

The spelling of 2231312133 in words is "two billion, two hundred thirty-one million, three hundred twelve thousand, one hundred thirty-three".