111120201077 has 2 divisors, whose sum is σ = 111120201078. Its totient is φ = 111120201076.

The previous prime is 111120201053. The next prime is 111120201083. The reversal of 111120201077 is 770102021111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88666377361 + 22453823716 = 297769^2 + 149846^2 .

It is a cyclic number.

It is not a de Polignac number, because 111120201077 - 2⁶ = 111120201013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111120201007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560100538 + 55560100539.

It is an arithmetic number, because the mean of its divisors is an integer number (55560100539).

Almost surely, 2^111120201077 is an apocalyptic number.

It is an amenable number.

111120201077 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120201077 is an equidigital number, since it uses as much as digits as its factorization.

111120201077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196, while the sum is 23.

Adding to 111120201077 its reverse (770102021111), we get a palindrome (881222222188).

The spelling of 111120201077 in words is "one hundred eleven billion, one hundred twenty million, two hundred one thousand, seventy-seven".