242044001081 has 2 divisors, whose sum is σ = 242044001082. Its totient is φ = 242044001080.

The previous prime is 242044001053. The next prime is 242044001119. The reversal of 242044001081 is 180100440242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239624935225 + 2419065856 = 489515^2 + 49184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242044001081 is a prime.

It is a super-2 number, since 2×242044001081² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242044001081.

It is not a weakly prime, because it can be changed into another prime (242044001581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121022000540 + 121022000541.

It is an arithmetic number, because the mean of its divisors is an integer number (121022000541).

Almost surely, 2^242044001081 is an apocalyptic number.

It is an amenable number.

242044001081 is a deficient number, since it is larger than the sum of its proper divisors (1).

242044001081 is an equidigital number, since it uses as much as digits as its factorization.

242044001081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 26.

The spelling of 242044001081 in words is "two hundred forty-two billion, forty-four million, one thousand, eighty-one".