1223023201 has 2 divisors, whose sum is σ = 1223023202. Its totient is φ = 1223023200.

The previous prime is 1223023199. The next prime is 1223023247. The reversal of 1223023201 is 1023203221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1209370176 + 13653025 = 34776^2 + 3695^2 .

It is an emirp because it is prime and its reverse (1023203221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223023201 - 2¹ = 1223023199 is a prime.

Together with 1223023199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1223023261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611511600 + 611511601.

It is an arithmetic number, because the mean of its divisors is an integer number (611511601).

Almost surely, 2^1223023201 is an apocalyptic number.

It is an amenable number.

1223023201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223023201 is an equidigital number, since it uses as much as digits as its factorization.

1223023201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1223023201 is about 34971.7486122727. The cubic root of 1223023201 is about 1069.4116196259.

Adding to 1223023201 its reverse (1023203221), we get a palindrome (2246226422).

The spelling of 1223023201 in words is "one billion, two hundred twenty-three million, twenty-three thousand, two hundred one".