242132313209 has 2 divisors, whose sum is σ = 242132313210. Its totient is φ = 242132313208.

The previous prime is 242132313193. The next prime is 242132313253. The reversal of 242132313209 is 902313231242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236004554809 + 6127758400 = 485803^2 + 78280^2 .

It is a cyclic number.

It is not a de Polignac number, because 242132313209 - 2⁴ = 242132313193 is a prime.

It is not a weakly prime, because it can be changed into another prime (242132313299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121066156604 + 121066156605.

It is an arithmetic number, because the mean of its divisors is an integer number (121066156605).

Almost surely, 2^242132313209 is an apocalyptic number.

It is an amenable number.

242132313209 is a deficient number, since it is larger than the sum of its proper divisors (1).

242132313209 is an equidigital number, since it uses as much as digits as its factorization.

242132313209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 242132313209 in words is "two hundred forty-two billion, one hundred thirty-two million, three hundred thirteen thousand, two hundred nine".