1205041105 has 16 divisors (see below), whose sum is σ = 1457688960. Its totient is φ = 956298112.

The previous prime is 1205041099. The next prime is 1205041111. The reversal of 1205041105 is 5011405021.

It is an interprime number because it is at equal distance from previous prime (1205041099) and next prime (1205041111).

It is a de Polignac number, because none of the positive numbers 2^k-1205041105 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514026 + ... + 516364.

It is an arithmetic number, because the mean of its divisors is an integer number (91105560).

Almost surely, 2^1205041105 is an apocalyptic number.

It is an amenable number.

1205041105 is a deficient number, since it is larger than the sum of its proper divisors (252647855).

1205041105 is a wasteful number, since it uses less digits than its factorization.

1205041105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1205041105 is about 34713.7019777494. The cubic root of 1205041105 is about 1064.1445384819.

Adding to 1205041105 its reverse (5011405021), we get a palindrome (6216446126).

The spelling of 1205041105 in words is "one billion, two hundred five million, forty-one thousand, one hundred five".