1223022443 has 2 divisors, whose sum is σ = 1223022444. Its totient is φ = 1223022442.

The previous prime is 1223022431. The next prime is 1223022461. The reversal of 1223022443 is 3442203221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223022443 - 2¹² = 1223018347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223022403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611511221 + 611511222.

It is an arithmetic number, because the mean of its divisors is an integer number (611511222).

Almost surely, 2^1223022443 is an apocalyptic number.

1223022443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223022443 is an equidigital number, since it uses as much as digits as its factorization.

1223022443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1223022443 is about 34971.7377749519. The cubic root of 1223022443 is about 1069.4113986941.

Adding to 1223022443 its reverse (3442203221), we get a palindrome (4665225664).

The spelling of 1223022443 in words is "one billion, two hundred twenty-three million, twenty-two thousand, four hundred forty-three".