201010020 has 48 divisors (see below), whose sum is σ = 582240960. Its totient is φ = 51753856.

The previous prime is 201010001. The next prime is 201010027. The reversal of 201010020 is 20010102.

It is a happy number.

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 = 201009990 and 201010008.

It is not an unprimeable number, because it can be changed into a prime (201010027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56022 + ... + 59501.

It is an arithmetic number, because the mean of its divisors is an integer number (12130020).

Almost surely, 2^201010020 is an apocalyptic number.

201010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201010020 is an abundant number, since it is smaller than the sum of its proper divisors (381230940).

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

201010020 is a wasteful number, since it uses less digits than its factorization.

201010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115564 (or 115562 counting only the distinct ones).

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

The square root of 201010020 is about 14177.8002525074. The cubic root of 201010020 is about 585.7863339035.

Adding to 201010020 its reverse (20010102), we get a palindrome (221020122).

The spelling of 201010020 in words is "two hundred one million, ten thousand, twenty".