242103455317 has 2 divisors, whose sum is σ = 242103455318. Its totient is φ = 242103455316.

The previous prime is 242103455281. The next prime is 242103455323. The reversal of 242103455317 is 713554301242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182355474961 + 59747980356 = 427031^2 + 244434^2 .

It is a cyclic number.

It is not a de Polignac number, because 242103455317 - 2¹⁹ = 242102931029 is a prime.

It is a super-2 number, since 2×242103455317² (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 (242103455357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121051727658 + 121051727659.

It is an arithmetic number, because the mean of its divisors is an integer number (121051727659).

Almost surely, 2^242103455317 is an apocalyptic number.

It is an amenable number.

242103455317 is a deficient number, since it is larger than the sum of its proper divisors (1).

242103455317 is an equidigital number, since it uses as much as digits as its factorization.

242103455317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 37.

Adding to 242103455317 its reverse (713554301242), we get a palindrome (955657756559).

The spelling of 242103455317 in words is "two hundred forty-two billion, one hundred three million, four hundred fifty-five thousand, three hundred seventeen".