111312031043 has 2 divisors, whose sum is σ = 111312031044. Its totient is φ = 111312031042.

The previous prime is 111312031009. The next prime is 111312031063. The reversal of 111312031043 is 340130213111.

It is an a-pointer prime, because the next prime (111312031063) can be obtained adding 111312031043 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111312031043 - 2⁶ = 111312030979 is a prime.

It is not a weakly prime, because it can be changed into another prime (111312031063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55656015521 + 55656015522.

It is an arithmetic number, because the mean of its divisors is an integer number (55656015522).

Almost surely, 2^111312031043 is an apocalyptic number.

111312031043 is a deficient number, since it is larger than the sum of its proper divisors (1).

111312031043 is an equidigital number, since it uses as much as digits as its factorization.

111312031043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111312031043 its reverse (340130213111), we get a palindrome (451442244154).

The spelling of 111312031043 in words is "one hundred eleven billion, three hundred twelve million, thirty-one thousand, forty-three".