18240023220103 has 8 divisors (see below), whose sum is σ = 19322627112000. Its totient is φ = 17158492811520.

The previous prime is 18240023220053. The next prime is 18240023220121. The reversal of 18240023220103 is 30102232004281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18240023220103 - 2¹³ = 18240023211911 is a prime.

It is a super-2 number, since 2×18240023220103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18240023220193) 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 7 ways as a sum of consecutive naturals, for example, 268335838 + ... + 268403803.

It is an arithmetic number, because the mean of its divisors is an integer number (2415328389000).

Almost surely, 2^{18240023220103} is an apocalyptic number.

18240023220103 is a deficient number, since it is larger than the sum of its proper divisors (1082603891897).

18240023220103 is a wasteful number, since it uses less digits than its factorization.

18240023220103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536741657.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 18240023220103 its reverse (30102232004281), we get a palindrome (48342255224384).

The spelling of 18240023220103 in words is "eighteen trillion, two hundred forty billion, twenty-three million, two hundred twenty thousand, one hundred three".