12011211201113 has 4 divisors (see below), whose sum is σ = 12102899836368. Its totient is φ = 11919522565860.

The previous prime is 12011211201091. The next prime is 12011211201127. The reversal of 12011211201113 is 31110211211021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12011211201113 - 2²⁴ = 12011194423897 is a prime.

It is a super-2 number, since 2×12011211201113² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011211201091 and 12011211201100.

It is not an unprimeable number, because it can be changed into a prime (12011211201163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45844317431 + ... + 45844317692.

It is an arithmetic number, because the mean of its divisors is an integer number (3025724959092).

Almost surely, 2^{12011211201113} is an apocalyptic number.

It is an amenable number.

12011211201113 is a deficient number, since it is larger than the sum of its proper divisors (91688635255).

12011211201113 is an equidigital number, since it uses as much as digits as its factorization.

12011211201113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91688635254.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 12011211201113 its reverse (31110211211021), we get a palindrome (43121422412134).

The spelling of 12011211201113 in words is "twelve trillion, eleven billion, two hundred eleven million, two hundred one thousand, one hundred thirteen".