131111321113 has 16 divisors (see below), whose sum is σ = 135881373760. Its totient is φ = 126428008896.

The previous prime is 131111321087. The next prime is 131111321137. The reversal of 131111321113 is 311123111131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131111321113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131111321153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1247806 + ... + 1348792.

It is an arithmetic number, because the mean of its divisors is an integer number (8492585860).

Almost surely, 2^131111321113 is an apocalyptic number.

It is an amenable number.

131111321113 is a deficient number, since it is larger than the sum of its proper divisors (4770052647).

131111321113 is a wasteful number, since it uses less digits than its factorization.

131111321113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101416.

The product of its digits is 54, while the sum is 19.

Adding to 131111321113 its reverse (311123111131), we get a palindrome (442234432244).

The spelling of 131111321113 in words is "one hundred thirty-one billion, one hundred eleven million, three hundred twenty-one thousand, one hundred thirteen".