10021032020 has 24 divisors (see below), whose sum is σ = 21090234984. Its totient is φ = 3999638016.

The previous prime is 10021031971. The next prime is 10021032029. The reversal of 10021032020 is 2023012001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 486290704 + 9534741316 = 22052^2 + 97646^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10021031992 and 10021032010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021032029) 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, 539057 + ... + 557336.

It is an arithmetic number, because the mean of its divisors is an integer number (878759791).

Almost surely, 2^10021032020 is an apocalyptic number.

10021032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021032020 is an abundant number, since it is smaller than the sum of its proper divisors (11069202964).

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

10021032020 is a wasteful number, since it uses less digits than its factorization.

10021032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096859 (or 1096857 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 10021032020 its reverse (2023012001), we get a palindrome (12044044021).

The spelling of 10021032020 in words is "ten billion, twenty-one million, thirty-two thousand, twenty".