12311131211113 has 48 divisors (see below), whose sum is σ = 15418801486224. Its totient is φ = 9764615024640.

The previous prime is 12311131211107. The next prime is 12311131211123. The reversal of 12311131211113 is 31111213111321.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 87381133609 + 12223750077504 = 295603^2 + 3496248^2 .

It is not a de Polignac number, because 12311131211113 - 2⁹ = 12311131210601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311131211123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119714845 + ... + 119817637.

It is an arithmetic number, because the mean of its divisors is an integer number (321225030963).

Almost surely, 2^{12311131211113} is an apocalyptic number.

It is an amenable number.

12311131211113 is a deficient number, since it is larger than the sum of its proper divisors (3107670275111).

12311131211113 is a wasteful number, since it uses less digits than its factorization.

12311131211113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105242 (or 105235 counting only the distinct ones).

The product of its digits is 108, while the sum is 22.

Adding to 12311131211113 its reverse (31111213111321), we get a palindrome (43422344322434).

The spelling of 12311131211113 in words is "twelve trillion, three hundred eleven billion, one hundred thirty-one million, two hundred eleven thousand, one hundred thirteen".