1205113103 has 2 divisors, whose sum is σ = 1205113104. Its totient is φ = 1205113102.

The previous prime is 1205113093. The next prime is 1205113111. The reversal of 1205113103 is 3013115021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1205113103 - 2⁴ = 1205113087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1205113193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602556551 + 602556552.

It is an arithmetic number, because the mean of its divisors is an integer number (602556552).

Almost surely, 2^1205113103 is an apocalyptic number.

1205113103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205113103 is an equidigital number, since it uses as much as digits as its factorization.

1205113103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1205113103 is about 34714.7389879285. The cubic root of 1205113103 is about 1064.1657313282.

Adding to 1205113103 its reverse (3013115021), we get a palindrome (4218228124).

The spelling of 1205113103 in words is "one billion, two hundred five million, one hundred thirteen thousand, one hundred three".