243050102257 has 2 divisors, whose sum is σ = 243050102258. Its totient is φ = 243050102256.

The previous prime is 243050102233. The next prime is 243050102303. The reversal of 243050102257 is 752201050342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242907036736 + 143065521 = 492856^2 + 11961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243050102257 is a prime.

It is not a weakly prime, because it can be changed into another prime (243050102657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121525051128 + 121525051129.

It is an arithmetic number, because the mean of its divisors is an integer number (121525051129).

Almost surely, 2^243050102257 is an apocalyptic number.

It is an amenable number.

243050102257 is a deficient number, since it is larger than the sum of its proper divisors (1).

243050102257 is an equidigital number, since it uses as much as digits as its factorization.

243050102257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 243050102257 its reverse (752201050342), we get a palindrome (995251152599).

The spelling of 243050102257 in words is "two hundred forty-three billion, fifty million, one hundred two thousand, two hundred fifty-seven".