31101112130000 has 400 divisors, whose sum is σ = 84449703444480. Its totient is φ = 10995288000000.

The previous prime is 31101112129981. The next prime is 31101112130021. The reversal of 31101112130000 is 3121110113.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 780650081 + ... + 780689919.

Almost surely, 2^{31101112130000} 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 31101112130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42224851722240).

31101112130000 is an abundant number, since it is smaller than the sum of its proper divisors (53348591314480).

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

31101112130000 is a wasteful number, since it uses less digits than its factorization.

31101112130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40076 (or 40055 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 31101112130000 its reverse (3121110113), we get a palindrome (31104233240113).

The spelling of 31101112130000 in words is "thirty-one trillion, one hundred one billion, one hundred twelve million, one hundred thirty thousand".