111400443031 has 4 divisors (see below), whose sum is σ = 113226679864. Its totient is φ = 109574206200.

The previous prime is 111400442963. The next prime is 111400443043. The reversal of 111400443031 is 130344004111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111400443031 is a prime.

It is a super-2 number, since 2×111400443031² (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 = 111400442993 and 111400443011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111400443331) 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, 913118325 + ... + 913118446.

It is an arithmetic number, because the mean of its divisors is an integer number (28306669966).

Almost surely, 2^111400443031 is an apocalyptic number.

111400443031 is a deficient number, since it is larger than the sum of its proper divisors (1826236833).

111400443031 is an equidigital number, since it uses as much as digits as its factorization.

111400443031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826236832.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 111400443031 its reverse (130344004111), we get a palindrome (241744447142).

The spelling of 111400443031 in words is "one hundred eleven billion, four hundred million, four hundred forty-three thousand, thirty-one".