240323321204209 has 2 divisors, whose sum is σ = 240323321204210. Its totient is φ = 240323321204208.

The previous prime is 240323321204191. The next prime is 240323321204227. The reversal of 240323321204209 is 902402123323042.

It is a balanced prime because it is at equal distance from previous prime (240323321204191) and next prime (240323321204227).

It can be written as a sum of positive squares in only one way, i.e., 148842513210609 + 91480807993600 = 12200103^2 + 9564560^2 .

It is a cyclic number.

It is not a de Polignac number, because 240323321204209 - 2¹⁷ = 240323321073137 is a prime.

It is a super-2 number, since 2×240323321204209² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240323321234209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120161660602104 + 120161660602105.

It is an arithmetic number, because the mean of its divisors is an integer number (120161660602105).

Almost surely, 2^{240323321204209} is an apocalyptic number.

It is an amenable number.

240323321204209 is a deficient number, since it is larger than the sum of its proper divisors (1).

240323321204209 is an equidigital number, since it uses as much as digits as its factorization.

240323321204209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 240323321204209 in words is "two hundred forty trillion, three hundred twenty-three billion, three hundred twenty-one million, two hundred four thousand, two hundred nine".