205143242262253 has 2 divisors, whose sum is σ = 205143242262254. Its totient is φ = 205143242262252.

The previous prime is 205143242262247. The next prime is 205143242262349. The reversal of 205143242262253 is 352262242341502.

205143242262253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108454999273929 + 96688242988324 = 10414173^2 + 9833018^2 .

It is a cyclic number.

It is not a de Polignac number, because 205143242262253 - 2¹³ = 205143242254061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205143242268253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102571621131126 + 102571621131127.

It is an arithmetic number, because the mean of its divisors is an integer number (102571621131127).

Almost surely, 2^{205143242262253} is an apocalyptic number.

It is an amenable number.

205143242262253 is a deficient number, since it is larger than the sum of its proper divisors (1).

205143242262253 is an equidigital number, since it uses as much as digits as its factorization.

205143242262253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382400, while the sum is 43.

The spelling of 205143242262253 in words is "two hundred five trillion, one hundred forty-three billion, two hundred forty-two million, two hundred sixty-two thousand, two hundred fifty-three".