Search a number
1112111000000 = 2656711213101

1112111000000 has 1176 divisors, whose sum is σ = 3768756134304. Its totient is φ = 316800000000.

The previous prime is 1112110999949. The next prime is 1112111000003. The reversal of 1112111000000 is 1112111.

Adding to 1112111000000 its reverse (1112111), we get a palindrome (1112112112111).

1112111000000 divided by its reverse (1112111) gives a 6-th power (1000000 = 106).

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112111000003) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 11010999950 + ... + 11011000050.

It is an arithmetic number, because the mean of its divisors is an integer number (3204724604).

Almost surely, 21112111000000 is an apocalyptic number.

1112111000000 is a gapful number since it is divisible by the number (10) 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 1112111000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1884378067152).

1112111000000 is an abundant number, since it is smaller than the sum of its proper divisors (2656645134304).

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

1112111000000 is an equidigital number, since it uses as much as digits as its factorization.

1112111000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

The spelling of 1112111000000 in words is "one trillion, one hundred twelve billion, one hundred eleven million", and thus it is an aban number.