111100102011 has 16 divisors (see below), whose sum is σ = 165003215520. Its totient is φ = 73882022400.

The previous prime is 111100102007. The next prime is 111100102013. The reversal of 111100102011 is 110201001111.

It is not a de Polignac number, because 111100102011 - 2² = 111100102007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111100101984 and 111100102002.

It is not an unprimeable number, because it can be changed into a prime (111100102013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5119870 + ... + 5141523.

It is an arithmetic number, because the mean of its divisors is an integer number (10312700970).

Almost surely, 2^111100102011 is an apocalyptic number.

111100102011 is a deficient number, since it is larger than the sum of its proper divisors (53903113509).

111100102011 is a wasteful number, since it uses less digits than its factorization.

111100102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10261803 (or 10261797 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111100102011 its reverse (110201001111), we get a palindrome (221301103122).

The spelling of 111100102011 in words is "one hundred eleven billion, one hundred million, one hundred two thousand, eleven".