10201321020 has 96 divisors (see below), whose sum is σ = 31176472320. Its totient is φ = 2471772160.

The previous prime is 10201321003. The next prime is 10201321033. The reversal of 10201321020 is 2012310201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10201320987 and 10201321005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2194819 + ... + 2199461.

It is an arithmetic number, because the mean of its divisors is an integer number (324754920).

Almost surely, 2^10201321020 is an apocalyptic number.

10201321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201321020 is an abundant number, since it is smaller than the sum of its proper divisors (20975151300).

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

10201321020 is a wasteful number, since it uses less digits than its factorization.

10201321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7995 (or 7993 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10201321020 its reverse (2012310201), we get a palindrome (12213631221).

The spelling of 10201321020 in words is "ten billion, two hundred one million, three hundred twenty-one thousand, twenty".