243352203401 has 2 divisors, whose sum is σ = 243352203402. Its totient is φ = 243352203400.

The previous prime is 243352203377. The next prime is 243352203427. The reversal of 243352203401 is 104302253342.

It is a happy number.

243352203401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190009681801 + 53342521600 = 435901^2 + 230960^2 .

It is a cyclic number.

It is not a de Polignac number, because 243352203401 - 2²² = 243348009097 is a prime.

It is not a weakly prime, because it can be changed into another prime (243352203461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121676101700 + 121676101701.

It is an arithmetic number, because the mean of its divisors is an integer number (121676101701).

Almost surely, 2^243352203401 is an apocalyptic number.

It is an amenable number.

243352203401 is a deficient number, since it is larger than the sum of its proper divisors (1).

243352203401 is an equidigital number, since it uses as much as digits as its factorization.

243352203401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 243352203401 its reverse (104302253342), we get a palindrome (347654456743).

The spelling of 243352203401 in words is "two hundred forty-three billion, three hundred fifty-two million, two hundred three thousand, four hundred one".