111130334431 has 4 divisors (see below), whose sum is σ = 112113788832. Its totient is φ = 110146880032.

The previous prime is 111130334429. The next prime is 111130334437. The reversal of 111130334431 is 134433031111.

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 111130334431 - 2¹ = 111130334429 is a prime.

It is a super-2 number, since 2×111130334431² (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 = 111130334396 and 111130334405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111130334437) 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, 491727031 + ... + 491727256.

It is an arithmetic number, because the mean of its divisors is an integer number (28028447208).

Almost surely, 2^111130334431 is an apocalyptic number.

111130334431 is a deficient number, since it is larger than the sum of its proper divisors (983454401).

111130334431 is an equidigital number, since it uses as much as digits as its factorization.

111130334431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983454400.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 111130334431 its reverse (134433031111), we get a palindrome (245563365542).

The spelling of 111130334431 in words is "one hundred eleven billion, one hundred thirty million, three hundred thirty-four thousand, four hundred thirty-one".