243032213279 has 2 divisors, whose sum is σ = 243032213280. Its totient is φ = 243032213278.

The previous prime is 243032213227. The next prime is 243032213311. The reversal of 243032213279 is 972312230342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243032213279 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243032513279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121516106639 + 121516106640.

It is an arithmetic number, because the mean of its divisors is an integer number (121516106640).

Almost surely, 2^243032213279 is an apocalyptic number.

243032213279 is a deficient number, since it is larger than the sum of its proper divisors (1).

243032213279 is an equidigital number, since it uses as much as digits as its factorization.

243032213279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 38.

The spelling of 243032213279 in words is "two hundred forty-three billion, thirty-two million, two hundred thirteen thousand, two hundred seventy-nine".