20010113020 has 12 divisors (see below), whose sum is σ = 42021237384. Its totient is φ = 8004045200.

The previous prime is 20010112961. The next prime is 20010113023. The reversal of 20010113020 is 2031101002.

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 = 20010112988 and 20010113006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010113023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500252806 + ... + 500252845.

It is an arithmetic number, because the mean of its divisors is an integer number (3501769782).

Almost surely, 2^20010113020 is an apocalyptic number.

20010113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010113020 is an abundant number, since it is smaller than the sum of its proper divisors (22011124364).

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

20010113020 is a wasteful number, since it uses less digits than its factorization.

20010113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000505660 (or 1000505658 counting only the distinct ones).

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

Adding to 20010113020 its reverse (2031101002), we get a palindrome (22041214022).

The spelling of 20010113020 in words is "twenty billion, ten million, one hundred thirteen thousand, twenty".