1226320343 has 2 divisors, whose sum is σ = 1226320344. Its totient is φ = 1226320342.

The previous prime is 1226320327. The next prime is 1226320367. The reversal of 1226320343 is 3430236221.

It is a weak prime.

It is an emirp because it is prime and its reverse (3430236221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1226320343 - 2⁴ = 1226320327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226322343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613160171 + 613160172.

It is an arithmetic number, because the mean of its divisors is an integer number (613160172).

Almost surely, 2^1226320343 is an apocalyptic number.

1226320343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226320343 is an equidigital number, since it uses as much as digits as its factorization.

1226320343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 1226320343 is about 35018.8569630706. The cubic root of 1226320343 is about 1070.3717644331.

Adding to 1226320343 its reverse (3430236221), we get a palindrome (4656556564).

The spelling of 1226320343 in words is "one billion, two hundred twenty-six million, three hundred twenty thousand, three hundred forty-three".