242544401401 has 2 divisors, whose sum is σ = 242544401402. Its totient is φ = 242544401400.

The previous prime is 242544401383. The next prime is 242544401423. The reversal of 242544401401 is 104104445242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195063555600 + 47480845801 = 441660^2 + 217901^2 .

It is a cyclic number.

It is not a de Polignac number, because 242544401401 - 2⁵ = 242544401369 is a prime.

It is not a weakly prime, because it can be changed into another prime (242544401471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121272200700 + 121272200701.

It is an arithmetic number, because the mean of its divisors is an integer number (121272200701).

Almost surely, 2^242544401401 is an apocalyptic number.

It is an amenable number.

242544401401 is a deficient number, since it is larger than the sum of its proper divisors (1).

242544401401 is an equidigital number, since it uses as much as digits as its factorization.

242544401401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 242544401401 its reverse (104104445242), we get a palindrome (346648846643).

The spelling of 242544401401 in words is "two hundred forty-two billion, five hundred forty-four million, four hundred one thousand, four hundred one".