11028043971 has 24 divisors (see below), whose sum is σ = 18879288064. Its totient is φ = 6301738440.

The previous prime is 11028043937. The next prime is 11028044017. The reversal of 11028043971 is 17934082011.

It is a happy number.

It is not a de Polignac number, because 11028043971 - 2¹¹ = 11028041923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11028044971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3239935 + ... + 3243336.

Almost surely, 2^11028043971 is an apocalyptic number.

11028043971 is a deficient number, since it is larger than the sum of its proper divisors (7851244093).

11028043971 is an frugal number, since it uses more digits than its factorization.

11028043971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6483293 (or 6483281 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 11028043971 in words is "eleven billion, twenty-eight million, forty-three thousand, nine hundred seventy-one".