2101100320203 has 4 divisors (see below), whose sum is σ = 2801467093608. Its totient is φ = 1400733546800.

The previous prime is 2101100320141. The next prime is 2101100320229. The reversal of 2101100320203 is 3020230011012.

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

It is a cyclic number.

It is not a de Polignac number, because 2101100320203 - 2¹⁷ = 2101100189131 is a prime.

It is a super-2 number, since 2×2101100320203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2101100320273) 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 3 ways as a sum of consecutive naturals, for example, 350183386698 + ... + 350183386703.

It is an arithmetic number, because the mean of its divisors is an integer number (700366773402).

Almost surely, 2^{2101100320203} is an apocalyptic number.

2101100320203 is a deficient number, since it is larger than the sum of its proper divisors (700366773405).

2101100320203 is an equidigital number, since it uses as much as digits as its factorization.

2101100320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700366773404.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2101100320203 its reverse (3020230011012), we get a palindrome (5121330331215).

The spelling of 2101100320203 in words is "two trillion, one hundred one billion, one hundred million, three hundred twenty thousand, two hundred three".