243000125319 has 12 divisors (see below), whose sum is σ = 376898153784. Its totient is φ = 138857214384.

The previous prime is 243000125309. The next prime is 243000125321. The reversal of 243000125319 is 913521000342.

It is not a de Polignac number, because 243000125319 - 2¹⁷ = 242999994247 is a prime.

It is a super-2 number, since 2×243000125319² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243000125309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 826530892 + ... + 826531185.

It is an arithmetic number, because the mean of its divisors is an integer number (31408179482).

Almost surely, 2^243000125319 is an apocalyptic number.

243000125319 is a deficient number, since it is larger than the sum of its proper divisors (133898028465).

243000125319 is a wasteful number, since it uses less digits than its factorization.

243000125319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653062094 (or 1653062087 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 243000125319 in words is "two hundred forty-three billion, one hundred twenty-five thousand, three hundred nineteen".