111443044061 has 2 divisors, whose sum is σ = 111443044062. Its totient is φ = 111443044060.

The previous prime is 111443043949. The next prime is 111443044073. The reversal of 111443044061 is 160440344111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86241481561 + 25201562500 = 293669^2 + 158750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111443044061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111443044261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55721522030 + 55721522031.

It is an arithmetic number, because the mean of its divisors is an integer number (55721522031).

Almost surely, 2^111443044061 is an apocalyptic number.

It is an amenable number.

111443044061 is a deficient number, since it is larger than the sum of its proper divisors (1).

111443044061 is an equidigital number, since it uses as much as digits as its factorization.

111443044061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 111443044061 its reverse (160440344111), we get a palindrome (271883388172).

The spelling of 111443044061 in words is "one hundred eleven billion, four hundred forty-three million, forty-four thousand, sixty-one".