120203020 has 48 divisors (see below), whose sum is σ = 291170880. Its totient is φ = 40829184.

The previous prime is 120203011. The next prime is 120203033. The reversal of 120203020 is 20302021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 120202988 and 120203006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11322 + ... + 19198.

It is an arithmetic number, because the mean of its divisors is an integer number (6066060).

Almost surely, 2^120203020 is an apocalyptic number.

120203020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120203020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145585440).

120203020 is an abundant number, since it is smaller than the sum of its proper divisors (170967860).

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

120203020 is a wasteful number, since it uses less digits than its factorization.

120203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8002 (or 8000 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 120203020 is about 10963.7137868516. The cubic root of 120203020 is about 493.5204194655.

Adding to 120203020 its reverse (20302021), we get a palindrome (140505041).

Subtracting from 120203020 its reverse (20302021), we obtain a palindrome (99900999).

The spelling of 120203020 in words is "one hundred twenty million, two hundred three thousand, twenty".