111330123131 has 4 divisors (see below), whose sum is σ = 111467399064. Its totient is φ = 111192847200.

The previous prime is 111330123109. The next prime is 111330123169. The reversal of 111330123131 is 131321033111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111330123131 - 2¹⁴ = 111330106747 is a prime.

It is a super-2 number, since 2×111330123131² (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 (111330123181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68636750 + ... + 68638371.

It is an arithmetic number, because the mean of its divisors is an integer number (27866849766).

Almost surely, 2^111330123131 is an apocalyptic number.

111330123131 is a deficient number, since it is larger than the sum of its proper divisors (137275933).

111330123131 is an equidigital number, since it uses as much as digits as its factorization.

111330123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137275932.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 111330123131 its reverse (131321033111), we get a palindrome (242651156242).

The spelling of 111330123131 in words is "one hundred eleven billion, three hundred thirty million, one hundred twenty-three thousand, one hundred thirty-one".