118202020 has 48 divisors (see below), whose sum is σ = 264297600. Its totient is φ = 44250624.

The previous prime is 118202011. The next prime is 118202023. The reversal of 118202020 is 20202811.

It is a junction number, because it is equal to n+sod(n) for n = 118201985 and 118202003.

It is not an unprimeable number, because it can be changed into a prime (118202023) 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, 66787 + ... + 68533.

It is an arithmetic number, because the mean of its divisors is an integer number (5506200).

Almost surely, 2^118202020 is an apocalyptic number.

118202020 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 118202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132148800).

118202020 is an abundant number, since it is smaller than the sum of its proper divisors (146095580).

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

118202020 is a wasteful number, since it uses less digits than its factorization.

118202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972 (or 1970 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 118202020 is about 10872.0752388861. The cubic root of 118202020 is about 490.7665635826.

Adding to 118202020 its reverse (20202811), we get a palindrome (138404831).

The spelling of 118202020 in words is "one hundred eighteen million, two hundred two thousand, twenty".