243310235053 has 2 divisors, whose sum is σ = 243310235054. Its totient is φ = 243310235052.

The previous prime is 243310235023. The next prime is 243310235089. The reversal of 243310235053 is 350532013342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129256787529 + 114053447524 = 359523^2 + 337718^2 .

It is a cyclic number.

It is not a de Polignac number, because 243310235053 - 2²¹ = 243308137901 is a prime.

It is a super-2 number, since 2×243310235053² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243310235023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121655117526 + 121655117527.

It is an arithmetic number, because the mean of its divisors is an integer number (121655117527).

Almost surely, 2^243310235053 is an apocalyptic number.

It is an amenable number.

243310235053 is a deficient number, since it is larger than the sum of its proper divisors (1).

243310235053 is an equidigital number, since it uses as much as digits as its factorization.

243310235053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 243310235053 its reverse (350532013342), we get a palindrome (593842248395).

The spelling of 243310235053 in words is "two hundred forty-three billion, three hundred ten million, two hundred thirty-five thousand, fifty-three".