31322200223 has 16 divisors (see below), whose sum is σ = 32866391712. Its totient is φ = 29816640000.

The previous prime is 31322200219. The next prime is 31322200279. The reversal of 31322200223 is 32200222313.

It is a cyclic number.

It is not a de Polignac number, because 31322200223 - 2² = 31322200219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31322200195 and 31322200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322200523) 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, 1791323 + ... + 1808723.

It is an arithmetic number, because the mean of its divisors is an integer number (2054149482).

Almost surely, 2^31322200223 is an apocalyptic number.

31322200223 is a deficient number, since it is larger than the sum of its proper divisors (1544191489).

31322200223 is a wasteful number, since it uses less digits than its factorization.

31322200223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18506.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31322200223 its reverse (32200222313), we get a palindrome (63522422536).

The spelling of 31322200223 in words is "thirty-one billion, three hundred twenty-two million, two hundred thousand, two hundred twenty-three".