1011600020 has 12 divisors (see below), whose sum is σ = 2124360084. Its totient is φ = 404640000.

The previous prime is 1011600013. The next prime is 1011600047. The reversal of 1011600020 is 200061101.

1011600020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 531025936 + 480574084 = 23044^2 + 21922^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1011599974 and 1011600010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25289981 + ... + 25290020.

It is an arithmetic number, because the mean of its divisors is an integer number (177030007).

Almost surely, 2^1011600020 is an apocalyptic number.

1011600020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011600020 is an abundant number, since it is smaller than the sum of its proper divisors (1112760064).

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

1011600020 is a wasteful number, since it uses less digits than its factorization.

1011600020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50580010 (or 50580008 counting only the distinct ones).

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

The square root of 1011600020 is about 31805.6601880860. The cubic root of 1011600020 is about 1003.8518177839.

Adding to 1011600020 its reverse (200061101), we get a palindrome (1211661121).

The spelling of 1011600020 in words is "one billion, eleven million, six hundred thousand, twenty".