12111211010011 has 8 divisors (see below), whose sum is σ = 12292033209680. Its totient is φ = 11930390512128.

The previous prime is 12111211009993. The next prime is 12111211010069. The reversal of 12111211010011 is 11001011211121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12111211010011 - 2²³ = 12111202621403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12111211009973 and 12111211010000.

It is not an unprimeable number, because it can be changed into a prime (12111211010611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27307435 + ... + 27747403.

It is an arithmetic number, because the mean of its divisors is an integer number (1536504151210).

Almost surely, 2^{12111211010011} is an apocalyptic number.

12111211010011 is a deficient number, since it is larger than the sum of its proper divisors (180822199669).

12111211010011 is an equidigital number, since it uses as much as digits as its factorization.

12111211010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850893.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 12111211010011 its reverse (11001011211121), we get a palindrome (23112222221132).

The spelling of 12111211010011 in words is "twelve trillion, one hundred eleven billion, two hundred eleven million, ten thousand, eleven".