1112121103 has 2 divisors, whose sum is σ = 1112121104. Its totient is φ = 1112121102.

The previous prime is 1112121089. The next prime is 1112121107. The reversal of 1112121103 is 3011212111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1112121103 - 2⁵ = 1112121071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112121107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556060551 + 556060552.

It is an arithmetic number, because the mean of its divisors is an integer number (556060552).

Almost surely, 2^1112121103 is an apocalyptic number.

1112121103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112121103 is an equidigital number, since it uses as much as digits as its factorization.

1112121103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1112121103 is about 33348.4797704483. The cubic root of 1112121103 is about 1036.0579015730.

Adding to 1112121103 its reverse (3011212111), we get a palindrome (4123333214).

The spelling of 1112121103 in words is "one billion, one hundred twelve million, one hundred twenty-one thousand, one hundred three".