12100011011 has 24 divisors (see below), whose sum is σ = 13793908800. Its totient is φ = 10593475200.

The previous prime is 12100010983. The next prime is 12100011017. The reversal of 12100011011 is 11011000121.

It is a happy number.

It is not a de Polignac number, because 12100011011 - 2⁶ = 12100010947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12100011011.

It is not an unprimeable number, because it can be changed into a prime (12100011017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1430966 + ... + 1439396.

It is an arithmetic number, because the mean of its divisors is an integer number (574746200).

Almost surely, 2^12100011011 is an apocalyptic number.

12100011011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12100011011 is a deficient number, since it is larger than the sum of its proper divisors (1693897789).

12100011011 is a wasteful number, since it uses less digits than its factorization.

12100011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8891 (or 8880 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 12100011011 its reverse (11011000121), we get a palindrome (23111011132).

It can be divided in two parts, 121000110 and 11, that added together give a palindrome (121000121).

The spelling of 12100011011 in words is "twelve billion, one hundred million, eleven thousand, eleven".