31310112223 has 8 divisors (see below), whose sum is σ = 33727040928. Its totient is φ = 28894391904.

The previous prime is 31310112209. The next prime is 31310112241. The reversal of 31310112223 is 32221101313.

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 31310112223 - 2¹³ = 31310104031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31310112223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310112263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247915 + ... + 352252.

It is an arithmetic number, because the mean of its divisors is an integer number (4215880116).

Almost surely, 2^31310112223 is an apocalyptic number.

31310112223 is a deficient number, since it is larger than the sum of its proper divisors (2416928705).

31310112223 is a wasteful number, since it uses less digits than its factorization.

31310112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604193.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31310112223 its reverse (32221101313), we get a palindrome (63531213536).

The spelling of 31310112223 in words is "thirty-one billion, three hundred ten million, one hundred twelve thousand, two hundred twenty-three".