11001111100038 has 24 divisors (see below), whose sum is σ = 24657662811600. Its totient is φ = 3540587480304.

The previous prime is 11001111100037. The next prime is 11001111100051. The reversal of 11001111100038 is 83000111110011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001111100033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10537462218 + ... + 10537463261.

It is an arithmetic number, because the mean of its divisors is an integer number (1027402617150).

Almost surely, 2^{11001111100038} is an apocalyptic number.

11001111100038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11001111100038 is an abundant number, since it is smaller than the sum of its proper divisors (13656551711562).

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

11001111100038 is a wasteful number, since it uses less digits than its factorization.

11001111100038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21074925516 (or 21074925513 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 11001111100038 its reverse (83000111110011), we get a palindrome (94001222210049).

It can be divided in two parts, 1100111110003 and 8, that added together give a palindrome (1100111110011).

The spelling of 11001111100038 in words is "eleven trillion, one billion, one hundred eleven million, one hundred thousand, thirty-eight".