10113120020 has 24 divisors (see below), whose sum is σ = 21245095368. Its totient is φ = 4043811200.

The previous prime is 10113119999. The next prime is 10113120023. The reversal of 10113120020 is 2002131101.

It can be written as a sum of positive squares in 4 ways, for example, as 91508356 + 10021611664 = 9566^2 + 100108^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10113119983 and 10113120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10113120023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31151 + ... + 145590.

It is an arithmetic number, because the mean of its divisors is an integer number (885212307).

Almost surely, 2^10113120020 is an apocalyptic number.

10113120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10113120020 is an abundant number, since it is smaller than the sum of its proper divisors (11131975348).

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

10113120020 is a wasteful number, since it uses less digits than its factorization.

10113120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179611 (or 179609 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10113120020 its reverse (2002131101), we get a palindrome (12115251121).

The spelling of 10113120020 in words is "ten billion, one hundred thirteen million, one hundred twenty thousand, twenty".