1223321353 has 2 divisors, whose sum is σ = 1223321354. Its totient is φ = 1223321352.

The previous prime is 1223321317. The next prime is 1223321381. The reversal of 1223321353 is 3531233221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665794809 + 557526544 = 25803^2 + 23612^2 .

It is an emirp because it is prime and its reverse (3531233221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223321353 - 2²¹ = 1221224201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223321303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611660676 + 611660677.

It is an arithmetic number, because the mean of its divisors is an integer number (611660677).

Almost surely, 2^1223321353 is an apocalyptic number.

It is an amenable number.

1223321353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223321353 is an equidigital number, since it uses as much as digits as its factorization.

1223321353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 25.

The square root of 1223321353 is about 34976.0111076149. The cubic root of 1223321353 is about 1069.4985139456.

Adding to 1223321353 its reverse (3531233221), we get a palindrome (4754554574).

The spelling of 1223321353 in words is "one billion, two hundred twenty-three million, three hundred twenty-one thousand, three hundred fifty-three".