31112643605532 has 12 divisors (see below), whose sum is σ = 72596168412936. Its totient is φ = 10370881201840.

The previous prime is 31112643605507. The next prime is 31112643605543. The reversal of 31112643605532 is 23550634621113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296360150219 + ... + 1296360150242.

It is an arithmetic number, because the mean of its divisors is an integer number (6049680701078).

Almost surely, 2^{31112643605532} is an apocalyptic number.

It is an amenable number.

31112643605532 is an abundant number, since it is smaller than the sum of its proper divisors (41483524807404).

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

31112643605532 is a wasteful number, since it uses less digits than its factorization.

31112643605532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592720300468 (or 2592720300466 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 31112643605532 in words is "thirty-one trillion, one hundred twelve billion, six hundred forty-three million, six hundred five thousand, five hundred thirty-two".