2102311322118 has 96 divisors (see below), whose sum is σ = 5483344688640. Its totient is φ = 568669092480.

The previous prime is 2102311322071. The next prime is 2102311322119. The reversal of 2102311322118 is 8112231132012.

It is a happy number.

2102311322118 is a `hidden beast` number, since 2 + 10 + 2 + 311 + 322 + 1 + 18 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2102311322091 and 2102311322100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102311322119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3326746 + ... + 3907922.

It is an arithmetic number, because the mean of its divisors is an integer number (57118173840).

Almost surely, 2^{2102311322118} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102311322118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2741672344320).

2102311322118 is an abundant number, since it is smaller than the sum of its proper divisors (3381033366522).

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

2102311322118 is a wasteful number, since it uses less digits than its factorization.

2102311322118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582722 (or 582719 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 2102311322118 in words is "two trillion, one hundred two billion, three hundred eleven million, three hundred twenty-two thousand, one hundred eighteen".