1205303211203 has 32 divisors (see below), whose sum is σ = 1487000256000. Its totient is φ = 951365813760.

The previous prime is 1205303211199. The next prime is 1205303211221. The reversal of 1205303211203 is 3021123035021.

It is a cyclic number.

It is not a de Polignac number, because 1205303211203 - 2² = 1205303211199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1205303211403) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 227541851 + ... + 227547147.

It is an arithmetic number, because the mean of its divisors is an integer number (46468758000).

Almost surely, 2^{1205303211203} is an apocalyptic number.

1205303211203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1205303211203 is a deficient number, since it is larger than the sum of its proper divisors (281697044797).

1205303211203 is a wasteful number, since it uses less digits than its factorization.

1205303211203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10827.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 1205303211203 its reverse (3021123035021), we get a palindrome (4226426246224).

The spelling of 1205303211203 in words is "one trillion, two hundred five billion, three hundred three million, two hundred eleven thousand, two hundred three".