111231301221133 has 2 divisors, whose sum is σ = 111231301221134. Its totient is φ = 111231301221132.

The previous prime is 111231301221101. The next prime is 111231301221193. The reversal of 111231301221133 is 331122103132111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105367823003689 + 5863478217444 = 10264883^2 + 2421462^2 .

It is a cyclic number.

It is not a de Polignac number, because 111231301221133 - 2⁵ = 111231301221101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111231301221098 and 111231301221107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111231301221193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55615650610566 + 55615650610567.

It is an arithmetic number, because the mean of its divisors is an integer number (55615650610567).

Almost surely, 2^{111231301221133} is an apocalyptic number.

It is an amenable number.

111231301221133 is a deficient number, since it is larger than the sum of its proper divisors (1).

111231301221133 is an equidigital number, since it uses as much as digits as its factorization.

111231301221133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 111231301221133 its reverse (331122103132111), we get a palindrome (442353404353244).

The spelling of 111231301221133 in words is "one hundred eleven trillion, two hundred thirty-one billion, three hundred one million, two hundred twenty-one thousand, one hundred thirty-three".