11383438311 has 24 divisors (see below), whose sum is σ = 18870359040. Its totient is φ = 6477596496.

The previous prime is 11383438291. The next prime is 11383438321.

11383438311 is a `hidden beast` number, since 113 + 83 + 438 + 31 + 1 = 666.

11383438311 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11383438311 - 2⁶ = 11383438247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11383438321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362955 + ... + 393068.

It is an arithmetic number, because the mean of its divisors is an integer number (786264960).

Almost surely, 2^11383438311 is an apocalyptic number.

11383438311 is a deficient number, since it is larger than the sum of its proper divisors (7486920729).

11383438311 is a wasteful number, since it uses less digits than its factorization.

11383438311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756275 (or 756272 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The spelling of 11383438311 in words is "eleven billion, three hundred eighty-three million, four hundred thirty-eight thousand, three hundred eleven".