243215054512141 has 2 divisors, whose sum is σ = 243215054512142. Its totient is φ = 243215054512140.

The previous prime is 243215054512069. The next prime is 243215054512151. The reversal of 243215054512141 is 141215450512342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163390925742916 + 79824128769225 = 12782446^2 + 8934435^2 .

It is a cyclic number.

It is not a de Polignac number, because 243215054512141 - 2⁹ = 243215054511629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243215054512094 and 243215054512103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243215054512151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121607527256070 + 121607527256071.

It is an arithmetic number, because the mean of its divisors is an integer number (121607527256071).

Almost surely, 2^{243215054512141} is an apocalyptic number.

It is an amenable number.

243215054512141 is a deficient number, since it is larger than the sum of its proper divisors (1).

243215054512141 is an equidigital number, since it uses as much as digits as its factorization.

243215054512141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 243215054512141 in words is "two hundred forty-three trillion, two hundred fifteen billion, fifty-four million, five hundred twelve thousand, one hundred forty-one".