240974566321 has 2 divisors, whose sum is σ = 240974566322. Its totient is φ = 240974566320.

The previous prime is 240974566319. The next prime is 240974566429. The reversal of 240974566321 is 123665479042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178941690225 + 62032876096 = 423015^2 + 249064^2 .

It is a cyclic number.

It is not a de Polignac number, because 240974566321 - 2¹ = 240974566319 is a prime.

It is a super-2 number, since 2×240974566321² (a number of 24 digits) contains 22 as substring.

Together with 240974566319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (240974567321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120487283160 + 120487283161.

It is an arithmetic number, because the mean of its divisors is an integer number (120487283161).

Almost surely, 2^240974566321 is an apocalyptic number.

It is an amenable number.

240974566321 is a deficient number, since it is larger than the sum of its proper divisors (1).

240974566321 is an equidigital number, since it uses as much as digits as its factorization.

240974566321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 240974566321 in words is "two hundred forty billion, nine hundred seventy-four million, five hundred sixty-six thousand, three hundred twenty-one".