11533207187 has 2 divisors, whose sum is σ = 11533207188. Its totient is φ = 11533207186.

The previous prime is 11533207177. The next prime is 11533207223. The reversal of 11533207187 is 78170233511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11533207187 - 2¹⁰ = 11533206163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11533207187.

It is not a weakly prime, because it can be changed into another prime (11533207177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5766603593 + 5766603594.

It is an arithmetic number, because the mean of its divisors is an integer number (5766603594).

Almost surely, 2^11533207187 is an apocalyptic number.

11533207187 is a deficient number, since it is larger than the sum of its proper divisors (1).

11533207187 is an equidigital number, since it uses as much as digits as its factorization.

11533207187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 11533207187 in words is "eleven billion, five hundred thirty-three million, two hundred seven thousand, one hundred eighty-seven".