242421042971 has 2 divisors, whose sum is σ = 242421042972. Its totient is φ = 242421042970.

The previous prime is 242421042949. The next prime is 242421043009. The reversal of 242421042971 is 179240124242.

It is an a-pointer prime, because the next prime (242421043009) can be obtained adding 242421042971 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242421042971 is a prime.

It is not a weakly prime, because it can be changed into another prime (242421042271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121210521485 + 121210521486.

It is an arithmetic number, because the mean of its divisors is an integer number (121210521486).

Almost surely, 2^242421042971 is an apocalyptic number.

242421042971 is a deficient number, since it is larger than the sum of its proper divisors (1).

242421042971 is an equidigital number, since it uses as much as digits as its factorization.

242421042971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 242421042971 in words is "two hundred forty-two billion, four hundred twenty-one million, forty-two thousand, nine hundred seventy-one".