120142020 has 48 divisors (see below), whose sum is σ = 337917888. Its totient is φ = 31893120.

The previous prime is 120142007. The next prime is 120142021. The reversal of 120142020 is 20241021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120141987 and 120142005.

It is not an unprimeable number, because it can be changed into a prime (120142021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9210 + ... + 18030.

It is an arithmetic number, because the mean of its divisors is an integer number (7039956).

Almost surely, 2^120142020 is an apocalyptic number.

120142020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120142020 is an abundant number, since it is smaller than the sum of its proper divisors (217775868).

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

120142020 is a wasteful number, since it uses less digits than its factorization.

120142020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9060 (or 9058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 120142020 is about 10960.9315297560. The cubic root of 120142020 is about 493.4369222858.

Adding to 120142020 its reverse (20241021), we get a palindrome (140383041).

Subtracting from 120142020 its reverse (20241021), we obtain a palindrome (99900999).

The spelling of 120142020 in words is "one hundred twenty million, one hundred forty-two thousand, twenty".