243210137141 has 2 divisors, whose sum is σ = 243210137142. Its totient is φ = 243210137140.

The previous prime is 243210137087. The next prime is 243210137201. The reversal of 243210137141 is 141731012342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146877496516 + 96332640625 = 383246^2 + 310375^2 .

It is a cyclic number.

It is not a de Polignac number, because 243210137141 - 2²⁶ = 243143028277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243210167141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121605068570 + 121605068571.

It is an arithmetic number, because the mean of its divisors is an integer number (121605068571).

Almost surely, 2^243210137141 is an apocalyptic number.

It is an amenable number.

243210137141 is a deficient number, since it is larger than the sum of its proper divisors (1).

243210137141 is an equidigital number, since it uses as much as digits as its factorization.

243210137141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 243210137141 its reverse (141731012342), we get a palindrome (384941149483).

The spelling of 243210137141 in words is "two hundred forty-three billion, two hundred ten million, one hundred thirty-seven thousand, one hundred forty-one".