31032203312 has 40 divisors (see below), whose sum is σ = 65778862800. Its totient is φ = 14065102080.

The previous prime is 31032203303. The next prime is 31032203339. The reversal of 31032203312 is 21330223013.

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, 191183 + ... + 314030.

It is an arithmetic number, because the mean of its divisors is an integer number (1644471570).

Almost surely, 2^31032203312 is an apocalyptic number.

It is an amenable number.

31032203312 is an abundant number, since it is smaller than the sum of its proper divisors (34746659488).

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

31032203312 is a wasteful number, since it uses less digits than its factorization.

31032203312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505581 (or 505575 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31032203312 its reverse (21330223013), we get a palindrome (52362426325).

The spelling of 31032203312 in words is "thirty-one billion, thirty-two million, two hundred three thousand, three hundred twelve".