111134111531 has 8 divisors (see below), whose sum is σ = 113737608240. Its totient is φ = 108554610528.

The previous prime is 111134111521. The next prime is 111134111597. The reversal of 111134111531 is 135111431111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111134111531 - 2¹⁴ = 111134095147 is a prime.

It is a super-2 number, since 2×111134111531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111134111497 and 111134111506.

It is not an unprimeable number, because it can be changed into a prime (111134111521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5989556 + ... + 6008081.

It is an arithmetic number, because the mean of its divisors is an integer number (14217201030).

Almost surely, 2^111134111531 is an apocalyptic number.

111134111531 is a deficient number, since it is larger than the sum of its proper divisors (2603496709).

111134111531 is a wasteful number, since it uses less digits than its factorization.

111134111531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11997853.

The product of its digits is 180, while the sum is 23.

Adding to 111134111531 its reverse (135111431111), we get a palindrome (246245542642).

The spelling of 111134111531 in words is "one hundred eleven billion, one hundred thirty-four million, one hundred eleven thousand, five hundred thirty-one".