201020003020 has 24 divisors (see below), whose sum is σ = 446973889824. Its totient is φ = 75678118656.

The previous prime is 201020003017. The next prime is 201020003029. The reversal of 201020003020 is 20300020102.

It is a super-2 number, since 2×201020003020² (a number of 23 digits) contains 22 as substring.

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 = 201020002988 and 201020003006.

It is not an unprimeable number, because it can be changed into a prime (201020003029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295617312 + ... + 295617991.

It is an arithmetic number, because the mean of its divisors is an integer number (18623912076).

Almost surely, 2^201020003020 is an apocalyptic number.

201020003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201020003020 is an abundant number, since it is smaller than the sum of its proper divisors (245953886804).

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

201020003020 is a wasteful number, since it uses less digits than its factorization.

201020003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591235329 (or 591235327 counting only the distinct ones).

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

Adding to 201020003020 its reverse (20300020102), we get a palindrome (221320023122).

The spelling of 201020003020 in words is "two hundred one billion, twenty million, three thousand, twenty".