120102020 has 12 divisors (see below), whose sum is σ = 252214284. Its totient is φ = 48040800.

The previous prime is 120102013. The next prime is 120102077. The reversal of 120102020 is 20201021.

It can be written as a sum of positive squares in 2 ways, for example, as 94051204 + 26050816 = 9698^2 + 5104^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120101989 and 120102007.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3002531 + ... + 3002570.

It is an arithmetic number, because the mean of its divisors is an integer number (21017857).

Almost surely, 2^120102020 is an apocalyptic number.

120102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120102020 is an abundant number, since it is smaller than the sum of its proper divisors (132112264).

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

120102020 is a wasteful number, since it uses less digits than its factorization.

120102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005110 (or 6005108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 120102020 is about 10959.1067154217. The cubic root of 120102020 is about 493.3821546928.

Adding to 120102020 its reverse (20201021), we get a palindrome (140303041).

Subtracting from 120102020 its reverse (20201021), we obtain a palindrome (99900999).

The spelling of 120102020 in words is "one hundred twenty million, one hundred two thousand, twenty".