31313332223 has 8 divisors (see below), whose sum is σ = 34900308720. Its totient is φ = 27920246400.

The previous prime is 31313332201. The next prime is 31313332241. The reversal of 31313332223 is 32223331313.

It is a happy number.

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 31313332223 - 2²² = 31309137919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31313332192 and 31313332201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313332423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48472328 + ... + 48472973.

It is an arithmetic number, because the mean of its divisors is an integer number (4362538590).

Almost surely, 2^31313332223 is an apocalyptic number.

31313332223 is a deficient number, since it is larger than the sum of its proper divisors (3586976497).

31313332223 is a wasteful number, since it uses less digits than its factorization.

31313332223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96945337.

The product of its digits is 5832, while the sum is 26.

Adding to 31313332223 its reverse (32223331313), we get a palindrome (63536663536).

The spelling of 31313332223 in words is "thirty-one billion, three hundred thirteen million, three hundred thirty-two thousand, two hundred twenty-three".