243120232301 has 2 divisors, whose sum is σ = 243120232302. Its totient is φ = 243120232300.

The previous prime is 243120232273. The next prime is 243120232337. The reversal of 243120232301 is 103232021342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242754275401 + 365956900 = 492701^2 + 19130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243120232301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243120232351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121560116150 + 121560116151.

It is an arithmetic number, because the mean of its divisors is an integer number (121560116151).

Almost surely, 2^243120232301 is an apocalyptic number.

It is an amenable number.

243120232301 is a deficient number, since it is larger than the sum of its proper divisors (1).

243120232301 is an equidigital number, since it uses as much as digits as its factorization.

243120232301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 243120232301 its reverse (103232021342), we get a palindrome (346352253643).

The spelling of 243120232301 in words is "two hundred forty-three billion, one hundred twenty million, two hundred thirty-two thousand, three hundred one".