1115212103 has 2 divisors, whose sum is σ = 1115212104. Its totient is φ = 1115212102.

The previous prime is 1115212067. The next prime is 1115212117. The reversal of 1115212103 is 3012125111.

It is a strong prime.

It is an emirp because it is prime and its reverse (3012125111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1115212103 - 2⁸ = 1115211847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115215103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557606051 + 557606052.

It is an arithmetic number, because the mean of its divisors is an integer number (557606052).

Almost surely, 2^1115212103 is an apocalyptic number.

1115212103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115212103 is an equidigital number, since it uses as much as digits as its factorization.

1115212103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1115212103 is about 33394.7915549716. The cubic root of 1115212103 is about 1037.0168776528.

Adding to 1115212103 its reverse (3012125111), we get a palindrome (4127337214).

The spelling of 1115212103 in words is "one billion, one hundred fifteen million, two hundred twelve thousand, one hundred three".