728358203123 has 2 divisors, whose sum is σ = 728358203124. Its totient is φ = 728358203122.

The previous prime is 728358203113. The next prime is 728358203201. The reversal of 728358203123 is 321302853827.

728358203123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 728358203123 - 2⁴ = 728358203107 is a prime.

It is not a weakly prime, because it can be changed into another prime (728358203113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364179101561 + 364179101562.

It is an arithmetic number, because the mean of its divisors is an integer number (364179101562).

Almost surely, 2^728358203123 is an apocalyptic number.

728358203123 is a deficient number, since it is larger than the sum of its proper divisors (1).

728358203123 is an equidigital number, since it uses as much as digits as its factorization.

728358203123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 728358203123 in words is "seven hundred twenty-eight billion, three hundred fifty-eight million, two hundred three thousand, one hundred twenty-three".