10202011020 has 96 divisors (see below), whose sum is σ = 32141491200. Its totient is φ = 2686087872.

The previous prime is 10202010991. The next prime is 10202011021. The reversal of 10202011020 is 2011020201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10202010993 and 10202011011.

It is not an unprimeable number, because it can be changed into a prime (10202011021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76914 + ... + 162233.

It is an arithmetic number, because the mean of its divisors is an integer number (334807200).

Almost surely, 2^10202011020 is an apocalyptic number.

10202011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10202011020 is an abundant number, since it is smaller than the sum of its proper divisors (21939480180).

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

10202011020 is a wasteful number, since it uses less digits than its factorization.

10202011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239244 (or 239236 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10202011020 its reverse (2011020201), we get a palindrome (12213031221).

The spelling of 10202011020 in words is "ten billion, two hundred two million, eleven thousand, twenty".