31223302230 has 32 divisors (see below), whose sum is σ = 76349814624. Its totient is φ = 8169115136.

The previous prime is 31223302223. The next prime is 31223302273. The reversal of 31223302230 is 3220332213.

It is a junction number, because it is equal to n+sod(n) for n = 31223302197 and 31223302206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9817059 + ... + 9820238.

It is an arithmetic number, because the mean of its divisors is an integer number (2385931707).

Almost surely, 2^31223302230 is an apocalyptic number.

31223302230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31223302230 is an abundant number, since it is smaller than the sum of its proper divisors (45126512394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31223302230 is a wasteful number, since it uses less digits than its factorization.

31223302230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19637360.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 31223302230 its reverse (3220332213), we get a palindrome (34443634443).

The spelling of 31223302230 in words is "thirty-one billion, two hundred twenty-three million, three hundred two thousand, two hundred thirty".