12131020213111 has 16 divisors (see below), whose sum is σ = 12528511193088. Its totient is φ = 11733916392000.

The previous prime is 12131020213087. The next prime is 12131020213129. The reversal of 12131020213111 is 11131202013121.

12131020213111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12131020213111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131020213181) 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, 647220006 + ... + 647238748.

It is an arithmetic number, because the mean of its divisors is an integer number (783031949568).

Almost surely, 2^{12131020213111} is an apocalyptic number.

12131020213111 is a deficient number, since it is larger than the sum of its proper divisors (397490979977).

12131020213111 is a wasteful number, since it uses less digits than its factorization.

12131020213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27942.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12131020213111 its reverse (11131202013121), we get a palindrome (23262222226232).

The spelling of 12131020213111 in words is "twelve trillion, one hundred thirty-one billion, twenty million, two hundred thirteen thousand, one hundred eleven".