111103113211 has 2 divisors, whose sum is σ = 111103113212. Its totient is φ = 111103113210.

The previous prime is 111103113193. The next prime is 111103113239. The reversal of 111103113211 is 112311301111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111103113211 is a prime.

It is not a weakly prime, because it can be changed into another prime (111103113281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55551556605 + 55551556606.

It is an arithmetic number, because the mean of its divisors is an integer number (55551556606).

Almost surely, 2^111103113211 is an apocalyptic number.

111103113211 is a deficient number, since it is larger than the sum of its proper divisors (1).

111103113211 is an equidigital number, since it uses as much as digits as its factorization.

111103113211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 111103113211 its reverse (112311301111), we get a palindrome (223414414322).

The spelling of 111103113211 in words is "one hundred eleven billion, one hundred three million, one hundred thirteen thousand, two hundred eleven".