2111131021110 has 32 divisors (see below), whose sum is σ = 5078255973120. Its totient is φ = 561685880928.

The previous prime is 2111131020961. The next prime is 2111131021123. The reversal of 2111131021110 is 111201311112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2111131021110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80136072 + ... + 80162411.

It is an arithmetic number, because the mean of its divisors is an integer number (158695499160).

Almost surely, 2^{2111131021110} is an apocalyptic number.

2111131021110 is an abundant number, since it is smaller than the sum of its proper divisors (2967124952010).

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

2111131021110 is a wasteful number, since it uses less digits than its factorization.

2111131021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160298932.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 2111131021110 its reverse (111201311112), we get a palindrome (2222332332222).

The spelling of 2111131021110 in words is "two trillion, one hundred eleven billion, one hundred thirty-one million, twenty-one thousand, one hundred ten".