111121133311 has 2 divisors, whose sum is σ = 111121133312. Its totient is φ = 111121133310.

The previous prime is 111121133309. The next prime is 111121133363. The reversal of 111121133311 is 113331121111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111121133311 - 2¹ = 111121133309 is a prime.

Together with 111121133309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111121133611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560566655 + 55560566656.

It is an arithmetic number, because the mean of its divisors is an integer number (55560566656).

Almost surely, 2^111121133311 is an apocalyptic number.

111121133311 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121133311 is an equidigital number, since it uses as much as digits as its factorization.

111121133311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54, while the sum is 19.

Adding to 111121133311 its reverse (113331121111), we get a palindrome (224452254422).

The spelling of 111121133311 in words is "one hundred eleven billion, one hundred twenty-one million, one hundred thirty-three thousand, three hundred eleven".