111012320101 has 2 divisors, whose sum is σ = 111012320102. Its totient is φ = 111012320100.

The previous prime is 111012320093. The next prime is 111012320117. The reversal of 111012320101 is 101023210111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67274871876 + 43737448225 = 259374^2 + 209135^2 .

It is an emirp because it is prime and its reverse (101023210111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111012320101 - 2³ = 111012320093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012320141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506160050 + 55506160051.

It is an arithmetic number, because the mean of its divisors is an integer number (55506160051).

Almost surely, 2^111012320101 is an apocalyptic number.

It is an amenable number.

111012320101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012320101 is an equidigital number, since it uses as much as digits as its factorization.

111012320101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111012320101 its reverse (101023210111), we get a palindrome (212035530212).

The spelling of 111012320101 in words is "one hundred eleven billion, twelve million, three hundred twenty thousand, one hundred one".