11415012105 has 64 divisors (see below), whose sum is σ = 21224982528. Its totient is φ = 5130639360.

The previous prime is 11415012101. The next prime is 11415012113. The reversal of 11415012105 is 50121051411.

It is not a de Polignac number, because 11415012105 - 2² = 11415012101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (11415012101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4733350 + ... + 4735760.

It is an arithmetic number, because the mean of its divisors is an integer number (331640352).

Almost surely, 2^11415012105 is an apocalyptic number.

11415012105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11415012105 is a deficient number, since it is larger than the sum of its proper divisors (9809970423).

11415012105 is a wasteful number, since it uses less digits than its factorization.

11415012105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166.

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 11415012105 its reverse (50121051411), we get a palindrome (61536063516).

The spelling of 11415012105 in words is "eleven billion, four hundred fifteen million, twelve thousand, one hundred five".