111103311431 has 24 divisors (see below), whose sum is σ = 129864992400. Its totient is φ = 94773369600.

The previous prime is 111103311391. The next prime is 111103311439. The reversal of 111103311431 is 134113301111.

It is not a de Polignac number, because 111103311431 - 2¹⁴ = 111103295047 is a prime.

It is a super-2 number, since 2×111103311431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111103311439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30099296 + ... + 30102986.

It is an arithmetic number, because the mean of its divisors is an integer number (5411041350).

Almost surely, 2^111103311431 is an apocalyptic number.

111103311431 is a deficient number, since it is larger than the sum of its proper divisors (18761680969).

111103311431 is a wasteful number, since it uses less digits than its factorization.

111103311431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495 (or 6488 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 111103311431 its reverse (134113301111), we get a palindrome (245216612542).

The spelling of 111103311431 in words is "one hundred eleven billion, one hundred three million, three hundred eleven thousand, four hundred thirty-one".