243234300451 has 2 divisors, whose sum is σ = 243234300452. Its totient is φ = 243234300450.

The previous prime is 243234300389. The next prime is 243234300457. The reversal of 243234300451 is 154003432342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243234300451 - 2²¹ = 243232203299 is a prime.

It is not a weakly prime, because it can be changed into another prime (243234300457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121617150225 + 121617150226.

It is an arithmetic number, because the mean of its divisors is an integer number (121617150226).

Almost surely, 2^243234300451 is an apocalyptic number.

243234300451 is a deficient number, since it is larger than the sum of its proper divisors (1).

243234300451 is an equidigital number, since it uses as much as digits as its factorization.

243234300451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 243234300451 its reverse (154003432342), we get a palindrome (397237732793).

The spelling of 243234300451 in words is "two hundred forty-three billion, two hundred thirty-four million, three hundred thousand, four hundred fifty-one".