11180628971 has 4 divisors (see below), whose sum is σ = 11322156000. Its totient is φ = 11039101944.

The previous prime is 11180628967. The next prime is 11180629007. The reversal of 11180628971 is 17982608111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17982608111 = 13 ⋅1383277547.

It is a cyclic number.

It is not a de Polignac number, because 11180628971 - 2² = 11180628967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11180628931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70763396 + ... + 70763553.

It is an arithmetic number, because the mean of its divisors is an integer number (2830539000).

Almost surely, 2^11180628971 is an apocalyptic number.

11180628971 is a deficient number, since it is larger than the sum of its proper divisors (141527029).

11180628971 is an equidigital number, since it uses as much as digits as its factorization.

11180628971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141527028.

The product of its (nonzero) digits is 48384, while the sum is 44.

The spelling of 11180628971 in words is "eleven billion, one hundred eighty million, six hundred twenty-eight thousand, nine hundred seventy-one".