2231312303 has 4 divisors (see below), whose sum is σ = 2434158888. Its totient is φ = 2028465720.

The previous prime is 2231312297. The next prime is 2231312309. The reversal of 2231312303 is 3032131322.

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

It is an interprime number because it is at equal distance from previous prime (2231312297) and next prime (2231312309).

It is a cyclic number.

It is not a de Polignac number, because 2231312303 - 2¹² = 2231308207 is a prime.

It is a super-3 number, since 3×2231312303³ (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 (2231312309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101423276 + ... + 101423297.

It is an arithmetic number, because the mean of its divisors is an integer number (608539722).

Almost surely, 2^2231312303 is an apocalyptic number.

2231312303 is a deficient number, since it is larger than the sum of its proper divisors (202846585).

2231312303 is a wasteful number, since it uses less digits than its factorization.

2231312303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202846584.

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

The square root of 2231312303 is about 47236.7685495102. The cubic root of 2231312303 is about 1306.7327829140.

Adding to 2231312303 its reverse (3032131322), we get a palindrome (5263443625).

The spelling of 2231312303 in words is "two billion, two hundred thirty-one million, three hundred twelve thousand, three hundred three".