240323321204251 has 2 divisors, whose sum is σ = 240323321204252. Its totient is φ = 240323321204250.

The previous prime is 240323321204231. The next prime is 240323321204287. The reversal of 240323321204251 is 152402123323042.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240323321204251 is a prime.

It is not a weakly prime, because it can be changed into another prime (240323321204231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120161660602125 + 120161660602126.

It is an arithmetic number, because the mean of its divisors is an integer number (120161660602126).

Almost surely, 2^{240323321204251} is an apocalyptic number.

240323321204251 is a deficient number, since it is larger than the sum of its proper divisors (1).

240323321204251 is an equidigital number, since it uses as much as digits as its factorization.

240323321204251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 240323321204251 its reverse (152402123323042), we get a palindrome (392725444527293).

The spelling of 240323321204251 in words is "two hundred forty trillion, three hundred twenty-three billion, three hundred twenty-one million, two hundred four thousand, two hundred fifty-one".