18210212101203 has 8 divisors (see below), whose sum is σ = 25063517730816. Its totient is φ = 11748523936200.

The previous prime is 18210212101187. The next prime is 18210212101223. The reversal of 18210212101203 is 30210121201281.

It is a happy number.

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

It is not a de Polignac number, because 18210212101203 - 2⁴ = 18210212101187 is a prime.

It is a super-2 number, since 2×18210212101203² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18210212101223) 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, 97904366043 + ... + 97904366228.

It is an arithmetic number, because the mean of its divisors is an integer number (3132939716352).

Almost surely, 2^{18210212101203} is an apocalyptic number.

18210212101203 is a deficient number, since it is larger than the sum of its proper divisors (6853305629613).

18210212101203 is a wasteful number, since it uses less digits than its factorization.

18210212101203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195808732305.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 18210212101203 its reverse (30210121201281), we get a palindrome (48420333302484).

The spelling of 18210212101203 in words is "eighteen trillion, two hundred ten billion, two hundred twelve million, one hundred one thousand, two hundred three".