18230103053509 has 4 divisors (see below), whose sum is σ = 18231139049004. Its totient is φ = 18229067058016.

The previous prime is 18230103053471. The next prime is 18230103053549. The reversal of 18230103053509 is 90535030103281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2196685622884 + 16033417430625 = 1482122^2 + 4004175^2 .

It is a cyclic number.

It is not a de Polignac number, because 18230103053509 - 2²⁷ = 18229968835781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18230103053549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517971352 + ... + 518006545.

It is an arithmetic number, because the mean of its divisors is an integer number (4557784762251).

Almost surely, 2^{18230103053509} is an apocalyptic number.

It is an amenable number.

18230103053509 is a deficient number, since it is larger than the sum of its proper divisors (1035995495).

18230103053509 is a wasteful number, since it uses less digits than its factorization.

18230103053509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035995494.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 18230103053509 in words is "eighteen trillion, two hundred thirty billion, one hundred three million, fifty-three thousand, five hundred nine".