31302344320312 has 128 divisors (see below), whose sum is σ = 63871215206400. Its totient is φ = 14296170816000.

The previous prime is 31302344320309. The next prime is 31302344320367. The reversal of 31302344320312 is 21302344320313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6114930889 + ... + 6114936007.

It is an arithmetic number, because the mean of its divisors is an integer number (498993868800).

Almost surely, 2^{31302344320312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31302344320312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31935607603200).

31302344320312 is an abundant number, since it is smaller than the sum of its proper divisors (32568870886088).

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

31302344320312 is a wasteful number, since it uses less digits than its factorization.

31302344320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6717 (or 6713 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 31302344320312 its reverse (21302344320313), we get a palindrome (52604688640625).

Subtracting from 31302344320312 its reverse (21302344320313), we obtain a palindrome (9999999999999).

The spelling of 31302344320312 in words is "thirty-one trillion, three hundred two billion, three hundred forty-four million, three hundred twenty thousand, three hundred twelve".