203143242413 has 2 divisors, whose sum is σ = 203143242414. Its totient is φ = 203143242412.

The previous prime is 203143242391. The next prime is 203143242437. The reversal of 203143242413 is 314242341302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144937819849 + 58205422564 = 380707^2 + 241258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203143242413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203143244413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101571621206 + 101571621207.

It is an arithmetic number, because the mean of its divisors is an integer number (101571621207).

Almost surely, 2^203143242413 is an apocalyptic number.

It is an amenable number.

203143242413 is a deficient number, since it is larger than the sum of its proper divisors (1).

203143242413 is an equidigital number, since it uses as much as digits as its factorization.

203143242413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 203143242413 its reverse (314242341302), we get a palindrome (517385583715).

The spelling of 203143242413 in words is "two hundred three billion, one hundred forty-three million, two hundred forty-two thousand, four hundred thirteen".