243034399793 has 2 divisors, whose sum is σ = 243034399794. Its totient is φ = 243034399792.

The previous prime is 243034399723. The next prime is 243034399799. The reversal of 243034399793 is 397993430342.

243034399793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241127156209 + 1907243584 = 491047^2 + 43672^2 .

It is a cyclic number.

It is not a de Polignac number, because 243034399793 - 2³² = 238739432497 is a prime.

It is not a weakly prime, because it can be changed into another prime (243034399799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121517199896 + 121517199897.

It is an arithmetic number, because the mean of its divisors is an integer number (121517199897).

Almost surely, 2^243034399793 is an apocalyptic number.

It is an amenable number.

243034399793 is a deficient number, since it is larger than the sum of its proper divisors (1).

243034399793 is an equidigital number, since it uses as much as digits as its factorization.

243034399793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13226976, while the sum is 56.

The spelling of 243034399793 in words is "two hundred forty-three billion, thirty-four million, three hundred ninety-nine thousand, seven hundred ninety-three".