203305334149 has 2 divisors, whose sum is σ = 203305334150. Its totient is φ = 203305334148.

The previous prime is 203305334143. The next prime is 203305334171. The reversal of 203305334149 is 941433503302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143503077124 + 59802257025 = 378818^2 + 244545^2 .

It is a cyclic number.

It is not a de Polignac number, because 203305334149 - 2¹⁹ = 203304809861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203305334143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101652667074 + 101652667075.

It is an arithmetic number, because the mean of its divisors is an integer number (101652667075).

Almost surely, 2^203305334149 is an apocalyptic number.

It is an amenable number.

203305334149 is a deficient number, since it is larger than the sum of its proper divisors (1).

203305334149 is an equidigital number, since it uses as much as digits as its factorization.

203305334149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 37.

The spelling of 203305334149 in words is "two hundred three billion, three hundred five million, three hundred thirty-four thousand, one hundred forty-nine".