31030111310000 has 400 divisors, whose sum is σ = 83487043094400. Its totient is φ = 11073638400000.

The previous prime is 31030111309991. The next prime is 31030111310203. The reversal of 31030111310000 is 1311103013.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (400).

It is a super-2 number, since 2×31030111310000² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4160086271 + ... + 4160093729.

It is an arithmetic number, because the mean of its divisors is an integer number (208717607736).

Almost surely, 2^{31030111310000} 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 31030111310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41743521547200).

31030111310000 is an abundant number, since it is smaller than the sum of its proper divisors (52456931784400).

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

31030111310000 is a wasteful number, since it uses less digits than its factorization.

31030111310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8198 (or 8177 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31030111310000 its reverse (1311103013), we get a palindrome (31031422413013).

The spelling of 31030111310000 in words is "thirty-one trillion, thirty billion, one hundred eleven million, three hundred ten thousand".