31120111000200 has 192 divisors, whose sum is σ = 97961696300160. Its totient is φ = 8171448606720.

The previous prime is 31120111000141. The next prime is 31120111000249. The reversal of 31120111000200 is 200011102113.

It is a super-2 number, since 2×31120111000200² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10108269 + ... + 12822531.

It is an arithmetic number, because the mean of its divisors is an integer number (510217168230).

Almost surely, 2^{31120111000200} is an apocalyptic number.

31120111000200 is a gapful number since it is divisible by the number (30) 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 31120111000200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48980848150080).

31120111000200 is an abundant number, since it is smaller than the sum of its proper divisors (66841585299960).

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

31120111000200 is a wasteful number, since it uses less digits than its factorization.

31120111000200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714576 (or 2714567 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 31120111000200 its reverse (200011102113), we get a palindrome (31320122102313).

The spelling of 31120111000200 in words is "thirty-one trillion, one hundred twenty billion, one hundred eleven million, two hundred", and thus it is an aban number.