2231203133 has 4 divisors (see below), whose sum is σ = 2231343420. Its totient is φ = 2231062848.

The previous prime is 2231203127. The next prime is 2231203153. The reversal of 2231203133 is 3313021322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2209282009 + 21921124 = 47003^2 + 4682^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231203133 - 2¹² = 2231199037 is a prime.

It is a super-3 number, since 3×2231203133³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231203103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42710 + ... + 79287.

It is an arithmetic number, because the mean of its divisors is an integer number (557835855).

Almost surely, 2^2231203133 is an apocalyptic number.

It is an amenable number.

2231203133 is a deficient number, since it is larger than the sum of its proper divisors (140287).

2231203133 is a wasteful number, since it uses less digits than its factorization.

2231203133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140286.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2231203133 is about 47235.6129736876. The cubic root of 2231203133 is about 1306.7114713381.

Adding to 2231203133 its reverse (3313021322), we get a palindrome (5544224455).

The spelling of 2231203133 in words is "two billion, two hundred thirty-one million, two hundred three thousand, one hundred thirty-three".