11000001138 has 32 divisors (see below), whose sum is σ = 25228699776. Its totient is φ = 3132127488.

The previous prime is 11000001127. The next prime is 11000001167. The reversal of 11000001138 is 83110000011.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434631 + ... + 459242.

It is an arithmetic number, because the mean of its divisors is an integer number (788396868).

Almost surely, 2^11000001138 is an apocalyptic number.

11000001138 is an abundant number, since it is smaller than the sum of its proper divisors (14228698638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11000001138 is a wasteful number, since it uses less digits than its factorization.

11000001138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894178.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11000001138 its reverse (83110000011), we get a palindrome (94110001149).

The spelling of 11000001138 in words is "eleven billion, one thousand, one hundred thirty-eight".