20101100110 has 32 divisors (see below), whose sum is σ = 44531669952. Its totient is φ = 6361666560.

The previous prime is 20101100099. The next prime is 20101100111. The reversal of 20101100110 is 1100110102.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 20101100093 and 20101100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101100111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11043651 + ... + 11045470.

It is an arithmetic number, because the mean of its divisors is an integer number (1391614686).

Almost surely, 2^20101100110 is an apocalyptic number.

20101100110 is an abundant number, since it is smaller than the sum of its proper divisors (24430569842).

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

20101100110 is a wasteful number, since it uses less digits than its factorization.

20101100110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22089148.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 20101100110 its reverse (1100110102), we get a palindrome (21201210212).

The spelling of 20101100110 in words is "twenty billion, one hundred one million, one hundred thousand, one hundred ten".