243120424021307 has 16 divisors (see below), whose sum is σ = 282438552302592. Its totient is φ = 204975315521280.

The previous prime is 243120424021283. The next prime is 243120424021313. The reversal of 243120424021307 is 703120424021342.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 243120424021307 - 2³⁴ = 243103244152123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243120424021907) 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, 1098222419 + ... + 1098443772.

It is an arithmetic number, because the mean of its divisors is an integer number (17652409518912).

Almost surely, 2^{243120424021307} is an apocalyptic number.

243120424021307 is a deficient number, since it is larger than the sum of its proper divisors (39318128281285).

243120424021307 is a wasteful number, since it uses less digits than its factorization.

243120424021307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196666458.

The product of its (nonzero) digits is 64512, while the sum is 35.

Adding to 243120424021307 its sum of digits (35), we get a palindrome (243120424021342).

Adding to 243120424021307 its reverse (703120424021342), we get a palindrome (946240848042649).

The spelling of 243120424021307 in words is "two hundred forty-three trillion, one hundred twenty billion, four hundred twenty-four million, twenty-one thousand, three hundred seven".