1223122073 has 2 divisors, whose sum is σ = 1223122074. Its totient is φ = 1223122072.

The previous prime is 1223122063. The next prime is 1223122079. The reversal of 1223122073 is 3702213221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1050278464 + 172843609 = 32408^2 + 13147^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223122073 - 2²⁰ = 1222073497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1223122079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611561036 + 611561037.

It is an arithmetic number, because the mean of its divisors is an integer number (611561037).

Almost surely, 2^1223122073 is an apocalyptic number.

It is an amenable number.

1223122073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223122073 is an equidigital number, since it uses as much as digits as its factorization.

1223122073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1223122073 is about 34973.1621818788. The cubic root of 1223122073 is about 1069.4404367452.

Adding to 1223122073 its reverse (3702213221), we get a palindrome (4925335294).

The spelling of 1223122073 in words is "one billion, two hundred twenty-three million, one hundred twenty-two thousand, seventy-three".