1102102011 has 16 divisors (see below), whose sum is σ = 1718678400.
Its totient is φ = 696064104.
The previous prime is 1102102007. The next prime is 1102102021. The reversal of 1102102011 is 1102012011.
It is a happy number.
It is not a de Polignac number, because 1102102011 - 22 = 1102102007 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 = 1102101984 and 1102102002.
It is not an unprimeable number, because it can be changed into a prime (1102102021) 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, 1073661 + ... + 1074686.
It is an arithmetic number, because the mean of its divisors is an integer number (107417400).
Almost surely, 21102102011 is an apocalyptic number.
1102102011 is a deficient number, since it is larger than the sum of its proper divisors (616576389).
1102102011 is a wasteful number, since it uses less digits than its factorization.
1102102011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2148375 (or 2148369 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 9.
The square root of 1102102011 is about 33197.9217873649.
The cubic root of 1102102011 is about 1032.9372316619.
Adding to 1102102011 its reverse (1102012011), we get a palindrome (2204114022).
Subtracting from 1102102011 its reverse (1102012011), we obtain a square (90000 = 3002).
The spelling of 1102102011 in words is "one billion, one hundred two million, one hundred two thousand, eleven".