243210202133 has 2 divisors, whose sum is σ = 243210202134. Its totient is φ = 243210202132.

The previous prime is 243210202129. The next prime is 243210202163. The reversal of 243210202133 is 331202012342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164427817009 + 78782385124 = 405497^2 + 280682^2 .

It is a cyclic number.

It is not a de Polignac number, because 243210202133 - 2² = 243210202129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243210202099 and 243210202108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243210202163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121605101066 + 121605101067.

It is an arithmetic number, because the mean of its divisors is an integer number (121605101067).

Almost surely, 2^243210202133 is an apocalyptic number.

It is an amenable number.

243210202133 is a deficient number, since it is larger than the sum of its proper divisors (1).

243210202133 is an equidigital number, since it uses as much as digits as its factorization.

243210202133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 243210202133 its reverse (331202012342), we get a palindrome (574412214475).

The spelling of 243210202133 in words is "two hundred forty-three billion, two hundred ten million, two hundred two thousand, one hundred thirty-three".