11323870515 has 24 divisors (see below), whose sum is σ = 20661098640. Its totient is φ = 5721534144.

The previous prime is 11323870499. The next prime is 11323870517. The reversal of 11323870515 is 51507832311.

It is a happy number.

11323870515 is a `hidden beast` number, since 1 + 132 + 3 + 8 + 7 + 0 + 515 = 666.

11323870515 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 11323870515 - 2⁴ = 11323870499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11323870515.

It is not an unprimeable number, because it can be changed into a prime (11323870517) 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, 6621292 + ... + 6623001.

It is an arithmetic number, because the mean of its divisors is an integer number (860879110).

Almost surely, 2^11323870515 is an apocalyptic number.

11323870515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11323870515 is a deficient number, since it is larger than the sum of its proper divisors (9337228125).

11323870515 is a wasteful number, since it uses less digits than its factorization.

11323870515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13244323 (or 13244320 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 11323870515 in words is "eleven billion, three hundred twenty-three million, eight hundred seventy thousand, five hundred fifteen".