1230323221 has 8 divisors (see below), whose sum is σ = 1243618200. Its totient is φ = 1217064960.

The previous prime is 1230323209. The next prime is 1230323251. The reversal of 1230323221 is 1223230321.

It can be written as a sum of positive squares in 4 ways, for example, as 699020721 + 531302500 = 26439^2 + 23050^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230323221 - 2¹³ = 1230315029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230323251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61065 + ... + 78673.

It is an arithmetic number, because the mean of its divisors is an integer number (155452275).

Almost surely, 2^1230323221 is an apocalyptic number.

It is an amenable number.

1230323221 is a deficient number, since it is larger than the sum of its proper divisors (13294979).

1230323221 is a wasteful number, since it uses less digits than its factorization.

1230323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18359.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1230323221 is about 35075.9635790665. The cubic root of 1230323221 is about 1071.5351130480.

Adding to 1230323221 its reverse (1223230321), we get a palindrome (2453553542).

It can be divided in two parts, 123032 and 3221, that added together give a triangular number (126253 = T₅₀₂).

The spelling of 1230323221 in words is "one billion, two hundred thirty million, three hundred twenty-three thousand, two hundred twenty-one".