11513719203 has 32 divisors (see below), whose sum is σ = 17942722560. Its totient is φ = 6430402560.

The previous prime is 11513719169. The next prime is 11513719219. The reversal of 11513719203 is 30291731511.

11513719203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 107302²-1.

It is not a de Polignac number, because 11513719203 - 2⁹ = 11513718691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11513719223) 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 31 ways as a sum of consecutive naturals, for example, 743443 + ... + 758771.

It is an arithmetic number, because the mean of its divisors is an integer number (560710080).

Almost surely, 2^11513719203 is an apocalyptic number.

11513719203 is a deficient number, since it is larger than the sum of its proper divisors (6429003357).

11513719203 is a wasteful number, since it uses less digits than its factorization.

11513719203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16147.

The product of its (nonzero) digits is 5670, while the sum is 33.

The spelling of 11513719203 in words is "eleven billion, five hundred thirteen million, seven hundred nineteen thousand, two hundred three".