31442303312 has 20 divisors (see below), whose sum is σ = 69622243296. Its totient is φ = 13475272800.

The previous prime is 31442303293. The next prime is 31442303383. The reversal of 31442303312 is 21330324413.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 140367314 + ... + 140367537.

Almost surely, 2^31442303312 is an apocalyptic number.

It is an amenable number.

31442303312 is an abundant number, since it is smaller than the sum of its proper divisors (38179939984).

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

31442303312 is a wasteful number, since it uses less digits than its factorization.

31442303312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280734866 (or 280734860 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31442303312 its reverse (21330324413), we get a palindrome (52772627725).

The spelling of 31442303312 in words is "thirty-one billion, four hundred forty-two million, three hundred three thousand, three hundred twelve".