111310221133 has 2 divisors, whose sum is σ = 111310221134. Its totient is φ = 111310221132.

The previous prime is 111310221107. The next prime is 111310221149. The reversal of 111310221133 is 331122013111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90505908964 + 20804312169 = 300842^2 + 144237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111310221133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111310221133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111310201133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55655110566 + 55655110567.

It is an arithmetic number, because the mean of its divisors is an integer number (55655110567).

Almost surely, 2^111310221133 is an apocalyptic number.

It is an amenable number.

111310221133 is a deficient number, since it is larger than the sum of its proper divisors (1).

111310221133 is an equidigital number, since it uses as much as digits as its factorization.

111310221133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111310221133 its reverse (331122013111), we get a palindrome (442432234244).

The spelling of 111310221133 in words is "one hundred eleven billion, three hundred ten million, two hundred twenty-one thousand, one hundred thirty-three".