111440223001031 has 4 divisors (see below), whose sum is σ = 112241951224200. Its totient is φ = 110638494777864.

The previous prime is 111440223001013. The next prime is 111440223001061. The reversal of 111440223001031 is 130100322044111.

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-111440223001031 is a prime.

It is a super-2 number, since 2×111440223001031² (a number of 29 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 = 111440223000988 and 111440223001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111440223001061) 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, 400864111376 + ... + 400864111653.

It is an arithmetic number, because the mean of its divisors is an integer number (28060487806050).

Almost surely, 2^{111440223001031} is an apocalyptic number.

111440223001031 is a deficient number, since it is larger than the sum of its proper divisors (801728223169).

111440223001031 is an equidigital number, since it uses as much as digits as its factorization.

111440223001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801728223168.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 111440223001031 its reverse (130100322044111), we get a palindrome (241540545045142).

The spelling of 111440223001031 in words is "one hundred eleven trillion, four hundred forty billion, two hundred twenty-three million, one thousand, thirty-one".