111000113131 has 2 divisors, whose sum is σ = 111000113132. Its totient is φ = 111000113130.

The previous prime is 111000113083. The next prime is 111000113143. The reversal of 111000113131 is 131311000111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111000113131 - 2¹⁵ = 111000080363 is a prime.

It is a super-2 number, since 2×111000113131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111090113131) 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 as a sum of consecutive naturals, namely, 55500056565 + 55500056566.

It is an arithmetic number, because the mean of its divisors is an integer number (55500056566).

Almost surely, 2^111000113131 is an apocalyptic number.

111000113131 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000113131 is an equidigital number, since it uses as much as digits as its factorization.

111000113131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 111000113131 its reverse (131311000111), we get a palindrome (242311113242).

The spelling of 111000113131 in words is "one hundred eleven billion, one hundred thirteen thousand, one hundred thirty-one".