1223351329 has 2 divisors, whose sum is σ = 1223351330. Its totient is φ = 1223351328.

The previous prime is 1223351323. The next prime is 1223351383. The reversal of 1223351329 is 9231533221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1078991104 + 144360225 = 32848^2 + 12015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223351329 - 2³ = 1223351321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223351329.

It is not a weakly prime, because it can be changed into another prime (1223351321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611675664 + 611675665.

It is an arithmetic number, because the mean of its divisors is an integer number (611675665).

Almost surely, 2^1223351329 is an apocalyptic number.

It is an amenable number.

1223351329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223351329 is an equidigital number, since it uses as much as digits as its factorization.

1223351329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 31.

The square root of 1223351329 is about 34976.4396272691. The cubic root of 1223351329 is about 1069.5072494604.

The spelling of 1223351329 in words is "one billion, two hundred twenty-three million, three hundred fifty-one thousand, three hundred twenty-nine".