11870813513 has 16 divisors (see below), whose sum is σ = 13232056320. Its totient is φ = 10574001984.

The previous prime is 11870813501. The next prime is 11870813519. The reversal of 11870813513 is 31531807811.

11870813513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11870813513 - 2²⁴ = 11854036297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11870813519) 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 15 ways as a sum of consecutive naturals, for example, 770120 + ... + 785382.

It is an arithmetic number, because the mean of its divisors is an integer number (827003520).

Almost surely, 2^11870813513 is an apocalyptic number.

11870813513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11870813513 is a deficient number, since it is larger than the sum of its proper divisors (1361242807).

11870813513 is a wasteful number, since it uses less digits than its factorization.

11870813513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17368.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 11870813513 in words is "eleven billion, eight hundred seventy million, eight hundred thirteen thousand, five hundred thirteen".