1223275523 has 2 divisors, whose sum is σ = 1223275524. Its totient is φ = 1223275522.

The previous prime is 1223275519. The next prime is 1223275589. The reversal of 1223275523 is 3255723221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223275523 - 2² = 1223275519 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223275523.

It is not a weakly prime, because it can be changed into another prime (1223265523) 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, 611637761 + 611637762.

It is an arithmetic number, because the mean of its divisors is an integer number (611637762).

Almost surely, 2^1223275523 is an apocalyptic number.

1223275523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223275523 is an equidigital number, since it uses as much as digits as its factorization.

1223275523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 32.

The square root of 1223275523 is about 34975.3559381459. The cubic root of 1223275523 is about 1069.4851580303.

Adding to 1223275523 its reverse (3255723221), we get a palindrome (4478998744).

The spelling of 1223275523 in words is "one billion, two hundred twenty-three million, two hundred seventy-five thousand, five hundred twenty-three".