11788971011 has 32 divisors (see below), whose sum is σ = 13155125760. Its totient is φ = 10507864576.

The previous prime is 11788970933. The next prime is 11788971023. The reversal of 11788971011 is 11017988711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11788971011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11788911011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28135760 + ... + 28136178.

It is an arithmetic number, because the mean of its divisors is an integer number (411097680).

Almost surely, 2^11788971011 is an apocalyptic number.

11788971011 is a deficient number, since it is larger than the sum of its proper divisors (1366154749).

11788971011 is a wasteful number, since it uses less digits than its factorization.

11788971011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003.

The product of its (nonzero) digits is 28224, while the sum is 44.

The spelling of 11788971011 in words is "eleven billion, seven hundred eighty-eight million, nine hundred seventy-one thousand, eleven".