31213682441652 has 48 divisors (see below), whose sum is σ = 77117338267200. Its totient is φ = 9792377774592.

The previous prime is 31213682441633. The next prime is 31213682441657. The reversal of 31213682441652 is 25614428631213.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31213682441657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12567474 + ... + 14844822.

It is an arithmetic number, because the mean of its divisors is an integer number (1606611213900).

Almost surely, 2^{31213682441652} is an apocalyptic number.

It is an amenable number.

31213682441652 is an abundant number, since it is smaller than the sum of its proper divisors (45903655825548).

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

31213682441652 is a wasteful number, since it uses less digits than its factorization.

31213682441652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344560 (or 2344558 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The spelling of 31213682441652 in words is "thirty-one trillion, two hundred thirteen billion, six hundred eighty-two million, four hundred forty-one thousand, six hundred fifty-two".