31205005248 has 224 divisors, whose sum is σ = 89239587840. Its totient is φ = 9588326400.

The previous prime is 31205005229. The next prime is 31205005259. The reversal of 31205005248 is 84250050213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33954933 + ... + 33955851.

Almost surely, 2^31205005248 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 31205005248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44619793920).

31205005248 is an abundant number, since it is smaller than the sum of its proper divisors (58034582592).

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

31205005248 is a wasteful number, since it uses less digits than its factorization.

31205005248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 31205005248 in words is "thirty-one billion, two hundred five million, five thousand, two hundred forty-eight".