31322222223 has 16 divisors (see below), whose sum is σ = 42231670272. Its totient is φ = 20648264000.

The previous prime is 31322222213. The next prime is 31322222249. The reversal of 31322222223 is 32222222313.

It is a cyclic number.

It is not a de Polignac number, because 31322222223 - 2⁶ = 31322222159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31322222193 and 31322222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322222213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31383 + ... + 252248.

It is an arithmetic number, because the mean of its divisors is an integer number (2639479392).

Almost surely, 2^31322222223 is an apocalyptic number.

31322222223 is a deficient number, since it is larger than the sum of its proper divisors (10909448049).

31322222223 is a wasteful number, since it uses less digits than its factorization.

31322222223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284046.

The product of its digits is 3456, while the sum is 24.

Adding to 31322222223 its reverse (32222222313), we get a palindrome (63544444536).

The spelling of 31322222223 in words is "thirty-one billion, three hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-three".