31233320223 has 32 divisors (see below), whose sum is σ = 48826160640. Its totient is φ = 17390885760.

The previous prime is 31233320191. The next prime is 31233320299. The reversal of 31233320223 is 32202333213.

It is not a de Polignac number, because 31233320223 - 2⁵ = 31233320191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31233320193 and 31233320202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233322223) 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 31 ways as a sum of consecutive naturals, for example, 23133 + ... + 251001.

It is an arithmetic number, because the mean of its divisors is an integer number (1525817520).

Almost surely, 2^31233320223 is an apocalyptic number.

31233320223 is a deficient number, since it is larger than the sum of its proper divisors (17592840417).

31233320223 is a wasteful number, since it uses less digits than its factorization.

31233320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228047.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 31233320223 its reverse (32202333213), we get a palindrome (63435653436).

The spelling of 31233320223 in words is "thirty-one billion, two hundred thirty-three million, three hundred twenty thousand, two hundred twenty-three".