243100425551 has 2 divisors, whose sum is σ = 243100425552. Its totient is φ = 243100425550.

The previous prime is 243100425517. The next prime is 243100425559. The reversal of 243100425551 is 155524001342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243100425551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243100425559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121550212775 + 121550212776.

It is an arithmetic number, because the mean of its divisors is an integer number (121550212776).

Almost surely, 2^243100425551 is an apocalyptic number.

243100425551 is a deficient number, since it is larger than the sum of its proper divisors (1).

243100425551 is an equidigital number, since it uses as much as digits as its factorization.

243100425551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 243100425551 its reverse (155524001342), we get a palindrome (398624426893).

The spelling of 243100425551 in words is "two hundred forty-three billion, one hundred million, four hundred twenty-five thousand, five hundred fifty-one".