1232022321 has 6 divisors (see below), whose sum is σ = 1779587810. Its totient is φ = 821348208.

The previous prime is 1232022271. The next prime is 1232022329. The reversal of 1232022321 is 1232202321.

1232022321 is a `hidden beast` number, since 1 + 2 + 320 + 22 + 321 = 666.

1232022321 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1232010000 + 12321 = 35100^2 + 111^2 .

It is not a de Polignac number, because 1232022321 - 2⁶ = 1232022257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1232022294 and 1232022303.

It is not an unprimeable number, because it can be changed into a prime (1232022329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68445676 + ... + 68445693.

Almost surely, 2^1232022321 is an apocalyptic number.

It is an amenable number.

1232022321 is a deficient number, since it is larger than the sum of its proper divisors (547565489).

1232022321 is a wasteful number, since it uses less digits than its factorization.

1232022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136891375 (or 136891372 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1232022321 is about 35100.1755123817. The cubic root of 1232022321 is about 1072.0281563412.

Adding to 1232022321 its reverse (1232202321), we get a palindrome (2464224642).

The spelling of 1232022321 in words is "one billion, two hundred thirty-two million, twenty-two thousand, three hundred twenty-one".