102020110 has 16 divisors (see below), whose sum is σ = 184221216. Its totient is φ = 40678048.

The previous prime is 102020099. The next prime is 102020119. The reversal of 102020110 is 11020201.

It is a junction number, because it is equal to n+sod(n) for n = 102020093 and 102020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12922 + ... + 19261.

It is an arithmetic number, because the mean of its divisors is an integer number (11513826).

Almost surely, 2^102020110 is an apocalyptic number.

102020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102020110 is a deficient number, since it is larger than the sum of its proper divisors (82201106).

102020110 is a wasteful number, since it uses less digits than its factorization.

102020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32507.

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

The square root of 102020110 is about 10100.5004826494. The cubic root of 102020110 is about 467.2635768736.

Adding to 102020110 its reverse (11020201), we get a palindrome (113040311).

Subtracting from 102020110 its reverse (11020201), we obtain a palindrome (90999909).

The spelling of 102020110 in words is "one hundred two million, twenty thousand, one hundred ten".