254042040403321 has 2 divisors, whose sum is σ = 254042040403322. Its totient is φ = 254042040403320.

The previous prime is 254042040403241. The next prime is 254042040403387. The reversal of 254042040403321 is 123304040240452.

254042040403321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207246658692096 + 46795381711225 = 14396064^2 + 6840715^2 .

It is a cyclic number.

It is not a de Polignac number, because 254042040403321 - 2²³ = 254042032014713 is a prime.

It is not a weakly prime, because it can be changed into another prime (254042040406321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127021020201660 + 127021020201661.

It is an arithmetic number, because the mean of its divisors is an integer number (127021020201661).

Almost surely, 2^{254042040403321} is an apocalyptic number.

It is an amenable number.

254042040403321 is a deficient number, since it is larger than the sum of its proper divisors (1).

254042040403321 is an equidigital number, since it uses as much as digits as its factorization.

254042040403321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 254042040403321 its reverse (123304040240452), we get a palindrome (377346080643773).

The spelling of 254042040403321 in words is "two hundred fifty-four trillion, forty-two billion, forty million, four hundred three thousand, three hundred twenty-one".