11100191102 has 64 divisors (see below), whose sum is σ = 22386115584. Its totient is φ = 3986634240.

The previous prime is 11100191101. The next prime is 11100191117. The reversal of 11100191102 is 20119100111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100191101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1644278 + ... + 1651014.

It is an arithmetic number, because the mean of its divisors is an integer number (349783056).

Almost surely, 2^11100191102 is an apocalyptic number.

11100191102 is an abundant number, since it is smaller than the sum of its proper divisors (11285924482).

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

11100191102 is a wasteful number, since it uses less digits than its factorization.

11100191102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7593.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 11100191102 its reverse (20119100111), we get a palindrome (31219291213).

It can be divided in two parts, 11100 and 191102, that added together give a palindrome (202202).

The spelling of 11100191102 in words is "eleven billion, one hundred million, one hundred ninety-one thousand, one hundred two".