31210043223 has 16 divisors (see below), whose sum is σ = 44920005120. Its totient is φ = 19215777504.

The previous prime is 31210043213. The next prime is 31210043243. The reversal of 31210043223 is 32234001213.

It is not a de Polignac number, because 31210043223 - 2⁶ = 31210043159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31210043223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31210043213) 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 15 ways as a sum of consecutive naturals, for example, 7796611 + ... + 7800612.

It is an arithmetic number, because the mean of its divisors is an integer number (2807500320).

Almost surely, 2^31210043223 is an apocalyptic number.

31210043223 is a deficient number, since it is larger than the sum of its proper divisors (13709961897).

31210043223 is a wasteful number, since it uses less digits than its factorization.

31210043223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15597278.

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

Adding to 31210043223 its reverse (32234001213), we get a palindrome (63444044436).

The spelling of 31210043223 in words is "thirty-one billion, two hundred ten million, forty-three thousand, two hundred twenty-three".