111231222103 has 2 divisors, whose sum is σ = 111231222104. Its totient is φ = 111231222102.

The previous prime is 111231222079. The next prime is 111231222127. The reversal of 111231222103 is 301222132111.

It is a balanced prime because it is at equal distance from previous prime (111231222079) and next prime (111231222127).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111231222103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111231222133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55615611051 + 55615611052.

It is an arithmetic number, because the mean of its divisors is an integer number (55615611052).

Almost surely, 2^111231222103 is an apocalyptic number.

111231222103 is a deficient number, since it is larger than the sum of its proper divisors (1).

111231222103 is an equidigital number, since it uses as much as digits as its factorization.

111231222103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111231222103 its reverse (301222132111), we get a palindrome (412453354214).

The spelling of 111231222103 in words is "one hundred eleven billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred three".