10020311020 has 96 divisors (see below), whose sum is σ = 22948531200. Its totient is φ = 3660893184.

The previous prime is 10020310987. The next prime is 10020311039. The reversal of 10020311020 is 2011302001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10020310988 and 10020311006.

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, 1581579 + ... + 1587901.

It is an arithmetic number, because the mean of its divisors is an integer number (239047200).

Almost surely, 2^10020311020 is an apocalyptic number.

10020311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10020311020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11474265600).

10020311020 is an abundant number, since it is smaller than the sum of its proper divisors (12928220180).

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

10020311020 is a wasteful number, since it uses less digits than its factorization.

10020311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6487 (or 6485 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10020311020 its reverse (2011302001), we get a palindrome (12031613021).

The spelling of 10020311020 in words is "ten billion, twenty million, three hundred eleven thousand, twenty".