1223203302305 has 16 divisors (see below), whose sum is σ = 1494419438160. Its totient is φ = 961004556288.

The previous prime is 1223203302283. The next prime is 1223203302317. The reversal of 1223203302305 is 5032033023221.

It can be written as a sum of positive squares in 8 ways, for example, as 74585248609 + 1148618053696 = 273103^2 + 1071736^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223203302305 - 2¹² = 1223203298209 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, 9869432 + ... + 9992601.

It is an arithmetic number, because the mean of its divisors is an integer number (93401214885).

Almost surely, 2^{1223203302305} is an apocalyptic number.

It is an amenable number.

1223203302305 is a deficient number, since it is larger than the sum of its proper divisors (271216135855).

1223203302305 is a wasteful number, since it uses less digits than its factorization.

1223203302305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19862260.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 1223203302305 its reverse (5032033023221), we get a palindrome (6255236325526).

The spelling of 1223203302305 in words is "one trillion, two hundred twenty-three billion, two hundred three million, three hundred two thousand, three hundred five".