18300212203 has 32 divisors (see below), whose sum is σ = 22708353024. Its totient is φ = 14360758272.

The previous prime is 18300212191. The next prime is 18300212257. The reversal of 18300212203 is 30221200381.

It is not a de Polignac number, because 18300212203 - 2²¹ = 18298115051 is a prime.

It is a super-2 number, since 2×18300212203² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18300212603) 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 31 ways as a sum of consecutive naturals, for example, 8767626 + ... + 8769712.

It is an arithmetic number, because the mean of its divisors is an integer number (709636032).

Almost surely, 2^18300212203 is an apocalyptic number.

18300212203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18300212203 is a deficient number, since it is larger than the sum of its proper divisors (4408140821).

18300212203 is a wasteful number, since it uses less digits than its factorization.

18300212203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 18300212203 its reverse (30221200381), we get a palindrome (48521412584).

The spelling of 18300212203 in words is "eighteen billion, three hundred million, two hundred twelve thousand, two hundred three".