111200030031 has 8 divisors (see below), whose sum is σ = 148464135424. Its totient is φ = 74034639000.

The previous prime is 111200030027. The next prime is 111200030077. The reversal of 111200030031 is 130030002111.

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

It is not a de Polignac number, because 111200030031 - 2² = 111200030027 is a prime.

It is a super-2 number, since 2×111200030031² (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 = 111200029989 and 111200030016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200030231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24675961 + ... + 24680466.

It is an arithmetic number, because the mean of its divisors is an integer number (18558016928).

Almost surely, 2^111200030031 is an apocalyptic number.

111200030031 is a deficient number, since it is larger than the sum of its proper divisors (37264105393).

111200030031 is an equidigital number, since it uses as much as digits as its factorization.

111200030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49357181.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 111200030031 its reverse (130030002111), we get a palindrome (241230032142).

The spelling of 111200030031 in words is "one hundred eleven billion, two hundred million, thirty thousand, thirty-one".