1020120 has 32 divisors (see below), whose sum is σ = 3060720. Its totient is φ = 272000.

The previous prime is 1020113. The next prime is 1020137. The reversal of 1020120 is 210201.

It is a happy number.

1020120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 1020099 and 1020108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4131 + ... + 4370.

2^1020120 is an apocalyptic number.

1020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020120 is an abundant number, since it is smaller than the sum of its proper divisors (2040600).

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

1020120 is a wasteful number, since it uses less digits than its factorization.

1020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8515 (or 8511 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1020120 is about 1010.0099009416. The cubic root of 1020120 is about 100.6662183413. Note that the first 3 decimals are identical.

Adding to 1020120 its reverse (210201), we get a palindrome (1230321).

The spelling of 1020120 in words is "one million, twenty thousand, one hundred twenty".