110102020 has 36 divisors (see below), whose sum is σ = 268965900. Its totient is φ = 37748928.

The previous prime is 110101997. The next prime is 110102021. The reversal of 110102020 is 20201011.

It can be written as a sum of positive squares in 2 ways, for example, as 63234304 + 46867716 = 7952^2 + 6846^2 .

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 = 110101994 and 110102012.

It is not an unprimeable number, because it can be changed into a prime (110102021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55195 + ... + 57154.

It is an arithmetic number, because the mean of its divisors is an integer number (7471275).

Almost surely, 2^110102020 is an apocalyptic number.

110102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110102020 is an abundant number, since it is smaller than the sum of its proper divisors (158863880).

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

110102020 is a wasteful number, since it uses less digits than its factorization.

110102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112372 (or 112363 counting only the distinct ones).

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

The square root of 110102020 is about 10492.9509671970. The cubic root of 110102020 is about 479.2900674069.

Adding to 110102020 its reverse (20201011), we get a palindrome (130303031).

The spelling of 110102020 in words is "one hundred ten million, one hundred two thousand, twenty".