11515155323 has 8 divisors (see below), whose sum is σ = 13167829248. Its totient is φ = 9864394344.

The previous prime is 11515155307. The next prime is 11515155331. The reversal of 11515155323 is 32355151511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11515155323 - 2⁴ = 11515155307 is a prime.

It is a super-2 number, since 2×11515155323² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11515155323.

It is not an unprimeable number, because it can be changed into a prime (11515152323) 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, 465311 + ... + 489432.

It is an arithmetic number, because the mean of its divisors is an integer number (1645978656).

Almost surely, 2^11515155323 is an apocalyptic number.

11515155323 is a deficient number, since it is larger than the sum of its proper divisors (1652673925).

11515155323 is an equidigital number, since it uses as much as digits as its factorization.

11515155323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956473.

The product of its digits is 11250, while the sum is 32.

The spelling of 11515155323 in words is "eleven billion, five hundred fifteen million, one hundred fifty-five thousand, three hundred twenty-three".