203143505141 has 2 divisors, whose sum is σ = 203143505142. Its totient is φ = 203143505140.

The previous prime is 203143505087. The next prime is 203143505161. The reversal of 203143505141 is 141505341302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203103448900 + 40056241 = 450670^2 + 6329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203143505141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203143505161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101571752570 + 101571752571.

It is an arithmetic number, because the mean of its divisors is an integer number (101571752571).

Almost surely, 2^203143505141 is an apocalyptic number.

It is an amenable number.

203143505141 is a deficient number, since it is larger than the sum of its proper divisors (1).

203143505141 is an equidigital number, since it uses as much as digits as its factorization.

203143505141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 203143505141 its reverse (141505341302), we get a palindrome (344648846443).

The spelling of 203143505141 in words is "two hundred three billion, one hundred forty-three million, five hundred five thousand, one hundred forty-one".