243434143201 has 2 divisors, whose sum is σ = 243434143202. Its totient is φ = 243434143200.

The previous prime is 243434143181. The next prime is 243434143223. The reversal of 243434143201 is 102341434342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127252012176 + 116182131025 = 356724^2 + 340855^2 .

It is a cyclic number.

It is not a de Polignac number, because 243434143201 - 2²¹ = 243432046049 is a prime.

It is not a weakly prime, because it can be changed into another prime (243434143241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121717071600 + 121717071601.

It is an arithmetic number, because the mean of its divisors is an integer number (121717071601).

Almost surely, 2^243434143201 is an apocalyptic number.

It is an amenable number.

243434143201 is a deficient number, since it is larger than the sum of its proper divisors (1).

243434143201 is an equidigital number, since it uses as much as digits as its factorization.

243434143201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 243434143201 its reverse (102341434342), we get a palindrome (345775577543).

The spelling of 243434143201 in words is "two hundred forty-three billion, four hundred thirty-four million, one hundred forty-three thousand, two hundred one".