11001110111028 has 18 divisors (see below), whose sum is σ = 27808361669634. Its totient is φ = 3667036703664.

The previous prime is 11001110111027. The next prime is 11001110111029. The reversal of 11001110111028 is 82011101110011.

It is an interprime number because it is at equal distance from previous prime (11001110111027) and next prime (11001110111029).

It can be written as a sum of positive squares in only one way, i.e., 9367933461264 + 1633176649764 = 3060708^2 + 1277958^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a self number, because there is not a number n which added to its sum of digits gives 11001110111028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001110111027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152793195951 + ... + 152793196022.

Almost surely, 2^{11001110111028} is an apocalyptic number.

11001110111028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11001110111028 is an abundant number, since it is smaller than the sum of its proper divisors (16807251558606).

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

11001110111028 is a wasteful number, since it uses less digits than its factorization.

11001110111028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305586391983 (or 305586391978 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 18.

Adding to 11001110111028 its reverse (82011101110011), we get a palindrome (93012211221039).

The spelling of 11001110111028 in words is "eleven trillion, one billion, one hundred ten million, one hundred eleven thousand, twenty-eight".