31343331223 has 8 divisors (see below), whose sum is σ = 31639651200. Its totient is φ = 31048399800.

The previous prime is 31343331221. The next prime is 31343331287. The reversal of 31343331223 is 32213334313.

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 31343331223 - 2¹ = 31343331221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31343331191 and 31343331200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31343331221) 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 7 ways as a sum of consecutive naturals, for example, 301753 + ... + 392098.

It is an arithmetic number, because the mean of its divisors is an integer number (3954956400).

Almost surely, 2^31343331223 is an apocalyptic number.

31343331223 is a deficient number, since it is larger than the sum of its proper divisors (296319977).

31343331223 is a wasteful number, since it uses less digits than its factorization.

31343331223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694277.

The product of its digits is 11664, while the sum is 28.

Adding to 31343331223 its reverse (32213334313), we get a palindrome (63556665536).

The spelling of 31343331223 in words is "thirty-one billion, three hundred forty-three million, three hundred thirty-one thousand, two hundred twenty-three".