11120171427 has 80 divisors (see below), whose sum is σ = 17947591200. Its totient is φ = 6836548608.

The previous prime is 11120171411. The next prime is 11120171429. The reversal of 11120171427 is 72417102111.

It is not a de Polignac number, because 11120171427 - 2⁴ = 11120171411 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11120171427.

It is not an unprimeable number, because it can be changed into a prime (11120171429) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 17029033 + ... + 17029685.

It is an arithmetic number, because the mean of its divisors is an integer number (224344890).

Almost surely, 2^11120171427 is an apocalyptic number.

11120171427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11120171427 is a deficient number, since it is larger than the sum of its proper divisors (6827419773).

11120171427 is a wasteful number, since it uses less digits than its factorization.

11120171427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

Adding to 11120171427 its reverse (72417102111), we get a palindrome (83537273538).

The spelling of 11120171427 in words is "eleven billion, one hundred twenty million, one hundred seventy-one thousand, four hundred twenty-seven".