111210113131 has 16 divisors (see below), whose sum is σ = 126109821600. Its totient is φ = 97220418048.

The previous prime is 111210113117. The next prime is 111210113141. The reversal of 111210113131 is 131311012111.

It is not a de Polignac number, because 111210113131 - 2⁵ = 111210113099 is a prime.

It is a super-2 number, since 2×111210113131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111210113141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690105 + ... + 835861.

It is an arithmetic number, because the mean of its divisors is an integer number (7881863850).

Almost surely, 2^111210113131 is an apocalyptic number.

111210113131 is a deficient number, since it is larger than the sum of its proper divisors (14899708469).

111210113131 is a wasteful number, since it uses less digits than its factorization.

111210113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148878.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 111210113131 its reverse (131311012111), we get a palindrome (242521125242).

The spelling of 111210113131 in words is "one hundred eleven billion, two hundred ten million, one hundred thirteen thousand, one hundred thirty-one".