10020332020 has 24 divisors (see below), whose sum is σ = 21079190664. Its totient is φ = 4001181696.

The previous prime is 10020332017. The next prime is 10020332029. The reversal of 10020332020 is 2023302001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6416971236 + 3603360784 = 80106^2 + 60028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020332029) 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, 422617 + ... + 445696.

It is an arithmetic number, because the mean of its divisors is an integer number (878299611).

Almost surely, 2^10020332020 is an apocalyptic number.

10020332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020332020 is an abundant number, since it is smaller than the sum of its proper divisors (11058858644).

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

10020332020 is a wasteful number, since it uses less digits than its factorization.

10020332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868899 (or 868897 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 10020332020 its reverse (2023302001), we get a palindrome (12043634021).

The spelling of 10020332020 in words is "ten billion, twenty million, three hundred thirty-two thousand, twenty".