111301231131 has 48 divisors (see below), whose sum is σ = 172746662400. Its totient is φ = 68808579840.

The previous prime is 111301231117. The next prime is 111301231141. The reversal of 111301231131 is 131132103111.

111301231131 is a `hidden beast` number, since 1 + 1 + 1 + 301 + 231 + 131 = 666.

It is not a de Polignac number, because 111301231131 - 2⁵ = 111301231099 is a prime.

It is a super-2 number, since 2×111301231131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111301231141) 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, 3118296 + ... + 3153786.

It is an arithmetic number, because the mean of its divisors is an integer number (3598888800).

Almost surely, 2^111301231131 is an apocalyptic number.

111301231131 is a deficient number, since it is larger than the sum of its proper divisors (61445431269).

111301231131 is a wasteful number, since it uses less digits than its factorization.

111301231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35816 (or 35813 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 111301231131 its reverse (131132103111), we get a palindrome (242433334242).

The spelling of 111301231131 in words is "one hundred eleven billion, three hundred one million, two hundred thirty-one thousand, one hundred thirty-one".