242317007601721 has 16 divisors (see below), whose sum is σ = 261930452671440. Its totient is φ = 222842681706240.

The previous prime is 242317007601677. The next prime is 242317007601791. The reversal of 242317007601721 is 127106700713242.

It can be written as a sum of positive squares in 8 ways, for example, as 114395003713600 + 127922003888121 = 10695560^2 + 11310261^2 .

It is a cyclic number.

It is not a de Polignac number, because 242317007601721 - 2¹⁵ = 242317007568953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242317007601791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279400471 + ... + 280266403.

It is an arithmetic number, because the mean of its divisors is an integer number (16370653291965).

Almost surely, 2^{242317007601721} is an apocalyptic number.

It is an amenable number.

242317007601721 is a deficient number, since it is larger than the sum of its proper divisors (19613445069719).

242317007601721 is a wasteful number, since it uses less digits than its factorization.

242317007601721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946236.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 242317007601721 in words is "two hundred forty-two trillion, three hundred seventeen billion, seven million, six hundred one thousand, seven hundred twenty-one".