10020011020 has 12 divisors (see below), whose sum is σ = 21042023184. Its totient is φ = 4008004400.

The previous prime is 10020011011. The next prime is 10020011077. The reversal of 10020011020 is 2011002001.

It is a junction number, because it is equal to n+sod(n) for n = 10020010994 and 10020011012.

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, 250500256 + ... + 250500295.

It is an arithmetic number, because the mean of its divisors is an integer number (1753501932).

Almost surely, 2^10020011020 is an apocalyptic number.

10020011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020011020 is an abundant number, since it is smaller than the sum of its proper divisors (11022012164).

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

10020011020 is a wasteful number, since it uses less digits than its factorization.

10020011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501000560 (or 501000558 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10020011020 its reverse (2011002001), we get a palindrome (12031013021).

The spelling of 10020011020 in words is "ten billion, twenty million, eleven thousand, twenty".