11515220314 has 16 divisors (see below), whose sum is σ = 18631684008. Its totient is φ = 5306095872.

The previous prime is 11515220309. The next prime is 11515220323. The reversal of 11515220314 is 41302251511.

11515220314 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3478994289 + 8036226025 = 58983^2 + 89645^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 342867 + ... + 374950.

Almost surely, 2^11515220314 is an apocalyptic number.

11515220314 is a deficient number, since it is larger than the sum of its proper divisors (7116463694).

11515220314 is a wasteful number, since it uses less digits than its factorization.

11515220314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718449.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 11515220314 its reverse (41302251511), we get a palindrome (52817471825).

The spelling of 11515220314 in words is "eleven billion, five hundred fifteen million, two hundred twenty thousand, three hundred fourteen".