1023300221 has 2 divisors, whose sum is σ = 1023300222. Its totient is φ = 1023300220.

The previous prime is 1023300167. The next prime is 1023300247. The reversal of 1023300221 is 1220033201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 811452196 + 211848025 = 28486^2 + 14555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023300221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1023300196 and 1023300205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023300251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511650110 + 511650111.

It is an arithmetic number, because the mean of its divisors is an integer number (511650111).

Almost surely, 2^1023300221 is an apocalyptic number.

It is an amenable number.

1023300221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023300221 is an equidigital number, since it uses as much as digits as its factorization.

1023300221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1023300221 is about 31989.0640844649. The cubic root of 1023300221 is about 1007.7071869977.

Adding to 1023300221 its reverse (1220033201), we get a palindrome (2243333422).

The spelling of 1023300221 in words is "one billion, twenty-three million, three hundred thousand, two hundred twenty-one".