242403203381 has 2 divisors, whose sum is σ = 242403203382. Its totient is φ = 242403203380.

The previous prime is 242403203369. The next prime is 242403203453. The reversal of 242403203381 is 183302304242.

242403203381 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., 163773996100 + 78629207281 = 404690^2 + 280409^2 .

It is a cyclic number.

It is not a de Polignac number, because 242403203381 - 2¹⁴ = 242403186997 is a prime.

It is a super-2 number, since 2×242403203381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242403203281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121201601690 + 121201601691.

It is an arithmetic number, because the mean of its divisors is an integer number (121201601691).

Almost surely, 2^242403203381 is an apocalyptic number.

It is an amenable number.

242403203381 is a deficient number, since it is larger than the sum of its proper divisors (1).

242403203381 is an equidigital number, since it uses as much as digits as its factorization.

242403203381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 242403203381 in words is "two hundred forty-two billion, four hundred three million, two hundred three thousand, three hundred eighty-one".