1223133473 has 2 divisors, whose sum is σ = 1223133474. Its totient is φ = 1223133472.

The previous prime is 1223133449. The next prime is 1223133503. The reversal of 1223133473 is 3743313221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1003115584 + 220017889 = 31672^2 + 14833^2 .

It is an emirp because it is prime and its reverse (3743313221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223133473 - 2¹⁸ = 1222871329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223133413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611566736 + 611566737.

It is an arithmetic number, because the mean of its divisors is an integer number (611566737).

Almost surely, 2^1223133473 is an apocalyptic number.

It is an amenable number.

1223133473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223133473 is an equidigital number, since it uses as much as digits as its factorization.

1223133473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 29.

The square root of 1223133473 is about 34973.3251636158. The cubic root of 1223133473 is about 1069.4437592762.

Adding to 1223133473 its reverse (3743313221), we get a palindrome (4966446694).

The spelling of 1223133473 in words is "one billion, two hundred twenty-three million, one hundred thirty-three thousand, four hundred seventy-three".