111120201120001 has 2 divisors, whose sum is σ = 111120201120002. Its totient is φ = 111120201120000.

The previous prime is 111120201119951. The next prime is 111120201120013. The reversal of 111120201120001 is 100021102021111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106138930640625 + 4981270479376 = 10302375^2 + 2231876^2 .

It is an emirp because it is prime and its reverse (100021102021111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111120201120001 - 2²³ = 111120192731393 is a prime.

It is not a weakly prime, because it can be changed into another prime (111120201120031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560100560000 + 55560100560001.

It is an arithmetic number, because the mean of its divisors is an integer number (55560100560001).

Almost surely, 2^{111120201120001} is an apocalyptic number.

It is an amenable number.

111120201120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120201120001 is an equidigital number, since it uses as much as digits as its factorization.

111120201120001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111120201120001 its reverse (100021102021111), we get a palindrome (211141303141112).

The spelling of 111120201120001 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred one million, one hundred twenty thousand, one".