11351521115 has 8 divisors (see below), whose sum is σ = 14860173168. Its totient is φ = 8255651680.

The previous prime is 11351521087. The next prime is 11351521121. The reversal of 11351521115 is 51112515311.

It is a happy number.

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

It is not a de Polignac number, because 11351521115 - 2¹² = 11351517019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103195592 + ... + 103195701.

It is an arithmetic number, because the mean of its divisors is an integer number (1857521646).

Almost surely, 2^11351521115 is an apocalyptic number.

11351521115 is a deficient number, since it is larger than the sum of its proper divisors (3508652053).

11351521115 is a wasteful number, since it uses less digits than its factorization.

11351521115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206391309.

The product of its digits is 750, while the sum is 26.

The spelling of 11351521115 in words is "eleven billion, three hundred fifty-one million, five hundred twenty-one thousand, one hundred fifteen".