11415251320 has 96 divisors (see below), whose sum is σ = 28277449200. Its totient is φ = 4144250880.

The previous prime is 11415251317. The next prime is 11415251329. The reversal of 11415251320 is 2315251411.

11415251320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11415251329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3720427 + ... + 3723493.

Almost surely, 2^11415251320 is an apocalyptic number.

11415251320 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 11415251320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14138724600).

11415251320 is an abundant number, since it is smaller than the sum of its proper divisors (16862197880).

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

11415251320 is a wasteful number, since it uses less digits than its factorization.

11415251320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3869 (or 3854 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Subtracting from 11415251320 its reverse (2315251411), we obtain a palindrome (9099999909).

The spelling of 11415251320 in words is "eleven billion, four hundred fifteen million, two hundred fifty-one thousand, three hundred twenty".