242040007771 has 2 divisors, whose sum is σ = 242040007772. Its totient is φ = 242040007770.

The previous prime is 242040007751. The next prime is 242040007787. The reversal of 242040007771 is 177700040242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242040007771 - 2¹¹ = 242040005723 is a prime.

It is not a weakly prime, because it can be changed into another prime (242040007711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121020003885 + 121020003886.

It is an arithmetic number, because the mean of its divisors is an integer number (121020003886).

Almost surely, 2^242040007771 is an apocalyptic number.

242040007771 is a deficient number, since it is larger than the sum of its proper divisors (1).

242040007771 is an equidigital number, since it uses as much as digits as its factorization.

242040007771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21952, while the sum is 34.

The spelling of 242040007771 in words is "two hundred forty-two billion, forty million, seven thousand, seven hundred seventy-one".