31030112320000 has 200 divisors, whose sum is σ = 77748713022816. Its totient is φ = 12368150016000.

The previous prime is 31030112319989. The next prime is 31030112320043. The reversal of 31030112320000 is 2321103013.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 90388677 + ... + 90731323.

Almost surely, 2^{31030112320000} 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 31030112320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38874356511408).

31030112320000 is an abundant number, since it is smaller than the sum of its proper divisors (46718600702816).

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

31030112320000 is an frugal number, since it uses more digits than its factorization.

31030112320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342968 (or 342937 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31030112320000 its reverse (2321103013), we get a palindrome (31032433423013).

The spelling of 31030112320000 in words is "thirty-one trillion, thirty billion, one hundred twelve million, three hundred twenty thousand".