1223253305 has 4 divisors (see below), whose sum is σ = 1467903972. Its totient is φ = 978602640.

The previous prime is 1223253289. The next prime is 1223253331. The reversal of 1223253305 is 5033523221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5033523221 = 4289 ⋅1173589.

It can be written as a sum of positive squares in 2 ways, for example, as 455907904 + 767345401 = 21352^2 + 27701^2 .

It is not a de Polignac number, because 1223253305 - 2⁴ = 1223253289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122325326 + ... + 122325335.

It is an arithmetic number, because the mean of its divisors is an integer number (366975993).

Almost surely, 2^1223253305 is an apocalyptic number.

It is an amenable number.

1223253305 is a deficient number, since it is larger than the sum of its proper divisors (244650667).

1223253305 is an equidigital number, since it uses as much as digits as its factorization.

1223253305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244650666.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 1223253305 is about 34975.0383130598. The cubic root of 1223253305 is about 1069.4786830744.

Adding to 1223253305 its reverse (5033523221), we get a palindrome (6256776526).

The spelling of 1223253305 in words is "one billion, two hundred twenty-three million, two hundred fifty-three thousand, three hundred five".