2203312431 has 4 divisors (see below), whose sum is σ = 2937749912. Its totient is φ = 1468874952.

The previous prime is 2203312427. The next prime is 2203312469. The reversal of 2203312431 is 1342133022.

2203312431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2203312431 - 2² = 2203312427 is a prime.

It is a super-2 number, since 2×2203312431² = 9709171337198259522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2203312398 and 2203312407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203312031) 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, 367218736 + ... + 367218741.

It is an arithmetic number, because the mean of its divisors is an integer number (734437478).

Almost surely, 2^2203312431 is an apocalyptic number.

2203312431 is a deficient number, since it is larger than the sum of its proper divisors (734437481).

2203312431 is an equidigital number, since it uses as much as digits as its factorization.

2203312431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734437480.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2203312431 is about 46939.4549499672. The cubic root of 2203312431 is about 1301.2438648907.

Adding to 2203312431 its reverse (1342133022), we get a palindrome (3545445453).

The spelling of 2203312431 in words is "two billion, two hundred three million, three hundred twelve thousand, four hundred thirty-one".