2111311110 has 128 divisors (see below), whose sum is σ = 5364486144. Its totient is φ = 531118080.

The previous prime is 2111311109. The next prime is 2111311121. The reversal of 2111311110 is 111131112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9300817 + ... + 9301043.

It is an arithmetic number, because the mean of its divisors is an integer number (41910048).

Almost surely, 2^2111311110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111311110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2682243072).

2111311110 is an abundant number, since it is smaller than the sum of its proper divisors (3253175034).

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

2111311110 is a wasteful number, since it uses less digits than its factorization.

2111311110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 2111311110 is about 45949.0055387491. The cubic root of 2111311110 is about 1282.8742194596.

Adding to 2111311110 its reverse (111131112), we get a palindrome (2222442222).

It can be divided in two parts, 21113 and 11110, that added together give a palindrome (32223).

The spelling of 2111311110 in words is "two billion, one hundred eleven million, three hundred eleven thousand, one hundred ten".