31320230222 has 8 divisors (see below), whose sum is σ = 47350269696. Its totient is φ = 15536806992.

The previous prime is 31320230209. The next prime is 31320230251. The reversal of 31320230222 is 22203202313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31320230194 and 31320230203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61653743 + ... + 61654250.

It is an arithmetic number, because the mean of its divisors is an integer number (5918783712).

Almost surely, 2^31320230222 is an apocalyptic number.

31320230222 is a deficient number, since it is larger than the sum of its proper divisors (16030039474).

31320230222 is a wasteful number, since it uses less digits than its factorization.

31320230222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123308122.

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

Adding to 31320230222 its reverse (22203202313), we get a palindrome (53523432535).

The spelling of 31320230222 in words is "thirty-one billion, three hundred twenty million, two hundred thirty thousand, two hundred twenty-two".