243351001043 has 2 divisors, whose sum is σ = 243351001044. Its totient is φ = 243351001042.

The previous prime is 243351001007. The next prime is 243351001081. The reversal of 243351001043 is 340100153342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243351001043 - 2²⁰ = 243349952467 is a prime.

It is not a weakly prime, because it can be changed into another prime (243351001093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121675500521 + 121675500522.

It is an arithmetic number, because the mean of its divisors is an integer number (121675500522).

Almost surely, 2^243351001043 is an apocalyptic number.

243351001043 is a deficient number, since it is larger than the sum of its proper divisors (1).

243351001043 is an equidigital number, since it uses as much as digits as its factorization.

243351001043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 243351001043 its reverse (340100153342), we get a palindrome (583451154385).

The spelling of 243351001043 in words is "two hundred forty-three billion, three hundred fifty-one million, one thousand, forty-three".