111344031 has 16 divisors (see below), whose sum is σ = 165487200. Its totient is φ = 73989504.

The previous prime is 111344003. The next prime is 111344039. The reversal of 111344031 is 130443111.

It is not a de Polignac number, because 111344031 - 2¹⁰ = 111343007 is a prime.

It is a super-2 number, since 2×111344031² = 24794986478657922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111343995 and 111344013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111344039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2055 + ... + 15063.

It is an arithmetic number, because the mean of its divisors is an integer number (10342950).

Almost surely, 2^111344031 is an apocalyptic number.

111344031 is a deficient number, since it is larger than the sum of its proper divisors (54143169).

111344031 is a wasteful number, since it uses less digits than its factorization.

111344031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13335 (or 13329 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 111344031 is about 10551.9681102627. The cubic root of 111344031 is about 481.0855509184.

Adding to 111344031 its reverse (130443111), we get a palindrome (241787142).

The spelling of 111344031 in words is "one hundred eleven million, three hundred forty-four thousand, thirty-one".