11005378011 has 16 divisors (see below), whose sum is σ = 16387034400. Its totient is φ = 7299671904.

The previous prime is 11005377979. The next prime is 11005378049. The reversal of 11005378011 is 11087350011.

11005378011 is a `hidden beast` number, since 110 + 0 + 537 + 8 + 0 + 11 = 666.

It is not a de Polignac number, because 11005378011 - 2⁵ = 11005377979 is a prime.

It is a super-2 number, since 2×11005378011² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11005378051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029216 + ... + 1039853.

It is an arithmetic number, because the mean of its divisors is an integer number (1024189650).

Almost surely, 2^11005378011 is an apocalyptic number.

11005378011 is a deficient number, since it is larger than the sum of its proper divisors (5381656389).

11005378011 is a wasteful number, since it uses less digits than its factorization.

11005378011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069275 (or 2069269 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

The spelling of 11005378011 in words is "eleven billion, five million, three hundred seventy-eight thousand, eleven".