1020112110 has 64 divisors (see below), whose sum is σ = 2738664000. Its totient is φ = 270193536.

The previous prime is 1020112087. The next prime is 1020112127. The reversal of 1020112110 is 112110201.

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 = 1020112092 and 1020112101.

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 31 ways as a sum of consecutive naturals, for example, 27552 + ... + 52908.

It is an arithmetic number, because the mean of its divisors is an integer number (42791625).

Almost surely, 2^1020112110 is an apocalyptic number.

1020112110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020112110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1369332000).

1020112110 is an abundant number, since it is smaller than the sum of its proper divisors (1718551890).

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

1020112110 is a wasteful number, since it uses less digits than its factorization.

1020112110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25522 (or 25516 counting only the distinct ones).

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

The square root of 1020112110 is about 31939.1939472492. The cubic root of 1020112110 is about 1006.6595881018.

Adding to 1020112110 its reverse (112110201), we get a palindrome (1132222311).

The spelling of 1020112110 in words is "one billion, twenty million, one hundred twelve thousand, one hundred ten".