12002111011 has 4 divisors (see below), whose sum is σ = 13093212024. Its totient is φ = 10911010000.

The previous prime is 12002111003. The next prime is 12002111021. The reversal of 12002111011 is 11011120021.

12002111011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11011120021 = 11 ⋅1001010911.

It is not a de Polignac number, because 12002111011 - 2³ = 12002111003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12002111021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545550490 + ... + 545550511.

It is an arithmetic number, because the mean of its divisors is an integer number (3273303006).

Almost surely, 2^12002111011 is an apocalyptic number.

12002111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12002111011 is a deficient number, since it is larger than the sum of its proper divisors (1091101013).

12002111011 is a wasteful number, since it uses less digits than its factorization.

12002111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091101012.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12002111011 its reverse (11011120021), we get a palindrome (23013231032).

It can be divided in two parts, 120021 and 11011, that multiplied together give a palindrome (1321551231).

The spelling of 12002111011 in words is "twelve billion, two million, one hundred eleven thousand, eleven".