31150013224512 has 224 divisors, whose sum is σ = 101761321000192. Its totient is φ = 8189139419136.

The previous prime is 31150013224459. The next prime is 31150013224529. The reversal of 31150013224512 is 21542231005113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a self number, because there is not a number n which added to its sum of digits gives 31150013224512.

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, 2620728 + ... + 8316744.

It is an arithmetic number, because the mean of its divisors is an integer number (454291611608).

Almost surely, 2^{31150013224512} is an apocalyptic number.

31150013224512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31150013224512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50880660500096).

31150013224512 is an abundant number, since it is smaller than the sum of its proper divisors (70611307775680).

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

31150013224512 is a wasteful number, since it uses less digits than its factorization.

31150013224512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696365 (or 5696355 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 31150013224512 its reverse (21542231005113), we get a palindrome (52692244229625).

The spelling of 31150013224512 in words is "thirty-one trillion, one hundred fifty billion, thirteen million, two hundred twenty-four thousand, five hundred twelve".