201042242020 has 12 divisors (see below), whose sum is σ = 422188708284. Its totient is φ = 80416896800.

The previous prime is 201042241979. The next prime is 201042242041. The reversal of 201042242020 is 20242240102.

It can be written as a sum of positive squares in 2 ways, for example, as 91532871936 + 109509370084 = 302544^2 + 330922^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5026056031 + ... + 5026056070.

It is an arithmetic number, because the mean of its divisors is an integer number (35182392357).

Almost surely, 2^201042242020 is an apocalyptic number.

201042242020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201042242020 is an abundant number, since it is smaller than the sum of its proper divisors (221146466264).

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

201042242020 is a wasteful number, since it uses less digits than its factorization.

201042242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10052112110 (or 10052112108 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 201042242020 its reverse (20242240102), we get a palindrome (221284482122).

The spelling of 201042242020 in words is "two hundred one billion, forty-two million, two hundred forty-two thousand, twenty".