11415200020 has 24 divisors (see below), whose sum is σ = 27396480384. Its totient is φ = 3913782816.

The previous prime is 11415199987. The next prime is 11415200021. The reversal of 11415200020 is 2000251411.

It is a junction number, because it is equal to n+sod(n) for n = 11415199967 and 11415200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11415200021) 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, 40768432 + ... + 40768711.

It is an arithmetic number, because the mean of its divisors is an integer number (1141520016).

Almost surely, 2^11415200020 is an apocalyptic number.

11415200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11415200020 is an abundant number, since it is smaller than the sum of its proper divisors (15981280364).

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

11415200020 is a wasteful number, since it uses less digits than its factorization.

11415200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81537159 (or 81537157 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 11415200020 its reverse (2000251411), we get a palindrome (13415451431).

The spelling of 11415200020 in words is "eleven billion, four hundred fifteen million, two hundred thousand, twenty".