243251024113 has 2 divisors, whose sum is σ = 243251024114. Its totient is φ = 243251024112.

The previous prime is 243251024089. The next prime is 243251024143. The reversal of 243251024113 is 311420152342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233373049569 + 9877974544 = 483087^2 + 99388^2 .

It is a cyclic number.

It is not a de Polignac number, because 243251024113 - 2²⁵ = 243217469681 is a prime.

It is not a weakly prime, because it can be changed into another prime (243251024143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121625512056 + 121625512057.

It is an arithmetic number, because the mean of its divisors is an integer number (121625512057).

Almost surely, 2^243251024113 is an apocalyptic number.

It is an amenable number.

243251024113 is a deficient number, since it is larger than the sum of its proper divisors (1).

243251024113 is an equidigital number, since it uses as much as digits as its factorization.

243251024113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 243251024113 its reverse (311420152342), we get a palindrome (554671176455).

The spelling of 243251024113 in words is "two hundred forty-three billion, two hundred fifty-one million, twenty-four thousand, one hundred thirteen".