20112340110 has 192 divisors, whose sum is σ = 54752495616. Its totient is φ = 4700861440.

The previous prime is 20112340099. The next prime is 20112340147. The reversal of 20112340110 is 1104321102.

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 20112340110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 105300115 + ... + 105300305.

It is an arithmetic number, because the mean of its divisors is an integer number (285169248).

Almost surely, 2^20112340110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112340110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27376247808).

20112340110 is an abundant number, since it is smaller than the sum of its proper divisors (34640155506).

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

20112340110 is a wasteful number, since it uses less digits than its factorization.

20112340110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20112340110 its reverse (1104321102), we get a palindrome (21216661212).

The spelling of 20112340110 in words is "twenty billion, one hundred twelve million, three hundred forty thousand, one hundred ten".