20102110 has 16 divisors (see below), whose sum is σ = 41353056. Its totient is φ = 6892128.

The previous prime is 20102099. The next prime is 20102111. The reversal of 20102110 is 1120102.

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 = 20102093 and 20102102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143517 + ... + 143656.

It is an arithmetic number, because the mean of its divisors is an integer number (2584566).

Almost surely, 2^20102110 is an apocalyptic number.

20102110 is an abundant number, since it is smaller than the sum of its proper divisors (21250946).

20102110 is a wasteful number, since it uses less digits than its factorization.

20102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287187.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 20102110 is about 4483.5376657278. The cubic root of 20102110 is about 271.9029263602.

Adding to 20102110 its reverse (1120102), we get a palindrome (21222212).

The spelling of 20102110 in words is "twenty million, one hundred two thousand, one hundred ten".