240122321 has 2 divisors, whose sum is σ = 240122322. Its totient is φ = 240122320.

The previous prime is 240122303. The next prime is 240122327. The reversal of 240122321 is 123221042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231648400 + 8473921 = 15220^2 + 2911^2 .

It is a cyclic number.

It is not a de Polignac number, because 240122321 - 2⁶ = 240122257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240122321.

It is not a weakly prime, because it can be changed into another prime (240122327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120061160 + 120061161.

It is an arithmetic number, because the mean of its divisors is an integer number (120061161).

Almost surely, 2^240122321 is an apocalyptic number.

It is an amenable number.

240122321 is a deficient number, since it is larger than the sum of its proper divisors (1).

240122321 is an equidigital number, since it uses as much as digits as its factorization.

240122321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 240122321 is about 15495.8807752254. The cubic root of 240122321 is about 621.5520609779.

Adding to 240122321 its reverse (123221042), we get a palindrome (363343363).

The spelling of 240122321 in words is "two hundred forty million, one hundred twenty-two thousand, three hundred twenty-one".