1223503273 has 2 divisors, whose sum is σ = 1223503274. Its totient is φ = 1223503272.

The previous prime is 1223503231. The next prime is 1223503279. The reversal of 1223503273 is 3723053221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1164720384 + 58782889 = 34128^2 + 7667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223503273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223503279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611751636 + 611751637.

It is an arithmetic number, because the mean of its divisors is an integer number (611751637).

Almost surely, 2^1223503273 is an apocalyptic number.

It is an amenable number.

1223503273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223503273 is an equidigital number, since it uses as much as digits as its factorization.

1223503273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 1223503273 is about 34978.6116505501. The cubic root of 1223503273 is about 1069.5515263246.

Adding to 1223503273 its reverse (3723053221), we get a palindrome (4946556494).

The spelling of 1223503273 in words is "one billion, two hundred twenty-three million, five hundred three thousand, two hundred seventy-three".