31103222312 has 32 divisors (see below), whose sum is σ = 60876230400. Its totient is φ = 14880835200.

The previous prime is 31103222291. The next prime is 31103222329. The reversal of 31103222312 is 21322230113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682514 + ... + 726657.

It is an arithmetic number, because the mean of its divisors is an integer number (1902382200).

Almost surely, 2^31103222312 is an apocalyptic number.

It is an amenable number.

31103222312 is a deficient number, since it is larger than the sum of its proper divisors (29773008088).

31103222312 is a wasteful number, since it uses less digits than its factorization.

31103222312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409297 (or 1409293 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31103222312 its reverse (21322230113), we get a palindrome (52425452425).

The spelling of 31103222312 in words is "thirty-one billion, one hundred three million, two hundred twenty-two thousand, three hundred twelve".