11532311315 has 16 divisors (see below), whose sum is σ = 15850987200. Its totient is φ = 7890247680.

The previous prime is 11532311311. The next prime is 11532311317. The reversal of 11532311315 is 51311323511.

It is a happy number.

11532311315 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 11532311315 - 2² = 11532311311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11532311311) 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, 351206 + ... + 382635.

It is an arithmetic number, because the mean of its divisors is an integer number (990686700).

Almost surely, 2^11532311315 is an apocalyptic number.

11532311315 is a deficient number, since it is larger than the sum of its proper divisors (4318675885).

11532311315 is an equidigital number, since it uses as much as digits as its factorization.

11532311315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734302.

The product of its digits is 1350, while the sum is 26.

Adding to 11532311315 its reverse (51311323511), we get a palindrome (62843634826).

The spelling of 11532311315 in words is "eleven billion, five hundred thirty-two million, three hundred eleven thousand, three hundred fifteen".