102020110110 has 24 divisors (see below), whose sum is σ = 265252286520. Its totient is φ = 27205362672.

The previous prime is 102020110091. The next prime is 102020110147. The reversal of 102020110110 is 11011020201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 102020110092 and 102020110101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566778300 + ... + 566778479.

It is an arithmetic number, because the mean of its divisors is an integer number (11052178605).

Almost surely, 2^102020110110 is an apocalyptic number.

102020110110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102020110110 is an abundant number, since it is smaller than the sum of its proper divisors (163232176410).

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

102020110110 is a wasteful number, since it uses less digits than its factorization.

102020110110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133556792 (or 1133556789 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 102020110110 its reverse (11011020201), we get a palindrome (113031130311).

The spelling of 102020110110 in words is "one hundred two billion, twenty million, one hundred ten thousand, one hundred ten".