11205315045 has 24 divisors (see below), whose sum is σ = 19427705856. Its totient is φ = 5974580448.

The previous prime is 11205315031. The next prime is 11205315059. The reversal of 11205315045 is 54051350211.

11205315045 is a `hidden beast` number, since 1 + 120 + 5 + 31 + 504 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (11205315031) and next prime (11205315059).

It is not a de Polignac number, because 11205315045 - 2⁸ = 11205314789 is a prime.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 149244 + ... + 211386.

It is an arithmetic number, because the mean of its divisors is an integer number (809487744).

Almost surely, 2^11205315045 is an apocalyptic number.

11205315045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11205315045 is a deficient number, since it is larger than the sum of its proper divisors (8222390811).

11205315045 is a wasteful number, since it uses less digits than its factorization.

11205315045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66161 (or 66158 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 11205315045 its reverse (54051350211), we get a palindrome (65256665256).

The spelling of 11205315045 in words is "eleven billion, two hundred five million, three hundred fifteen thousand, forty-five".