11131377471 has 6 divisors (see below), whose sum is σ = 16078656360. Its totient is φ = 7420918308.

The previous prime is 11131377379. The next prime is 11131377553. The reversal of 11131377471 is 17477313111.

11131377471 is a `hidden beast` number, since 1 + 113 + 1 + 3 + 77 + 471 = 666.

It is not a de Polignac number, because 11131377471 - 2⁷ = 11131377343 is a prime.

It is a super-3 number, since 3×11131377471³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131377571) 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 5 ways as a sum of consecutive naturals, for example, 618409851 + ... + 618409868.

It is an arithmetic number, because the mean of its divisors is an integer number (2679776060).

Almost surely, 2^11131377471 is an apocalyptic number.

11131377471 is a deficient number, since it is larger than the sum of its proper divisors (4947278889).

11131377471 is a wasteful number, since it uses less digits than its factorization.

11131377471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236819725 (or 1236819722 counting only the distinct ones).

The product of its digits is 12348, while the sum is 36.

The spelling of 11131377471 in words is "eleven billion, one hundred thirty-one million, three hundred seventy-seven thousand, four hundred seventy-one".