3031431223 has 4 divisors (see below), whose sum is σ = 3035169928. Its totient is φ = 3027692520.

The previous prime is 3031431181. The next prime is 3031431229. The reversal of 3031431223 is 3221341303.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3031431223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3031431194 and 3031431203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031431229) 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, 1868136 + ... + 1869757.

It is an arithmetic number, because the mean of its divisors is an integer number (758792482).

Almost surely, 2^3031431223 is an apocalyptic number.

3031431223 is a deficient number, since it is larger than the sum of its proper divisors (3738705).

3031431223 is an equidigital number, since it uses as much as digits as its factorization.

3031431223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738704.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 3031431223 is about 55058.4346217725. The cubic root of 3031431223 is about 1447.2689334791.

Adding to 3031431223 its reverse (3221341303), we get a palindrome (6252772526).

The spelling of 3031431223 in words is "three billion, thirty-one million, four hundred thirty-one thousand, two hundred twenty-three".