31271344104 has 384 divisors, whose sum is σ = 112475865600. Its totient is φ = 7102287360.

The previous prime is 31271344099. The next prime is 31271344129. The reversal of 31271344104 is 40144317213.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3190299 + ... + 3200085.

It is an arithmetic number, because the mean of its divisors is an integer number (292905900).

Almost surely, 2^31271344104 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 31271344104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56237932800).

31271344104 is an abundant number, since it is smaller than the sum of its proper divisors (81204521496).

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

31271344104 is a wasteful number, since it uses less digits than its factorization.

31271344104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9853 (or 9842 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 31271344104 in words is "thirty-one billion, two hundred seventy-one million, three hundred forty-four thousand, one hundred four".