2101830018203 has 8 divisors (see below), whose sum is σ = 2243613957120. Its totient is φ = 1963162209960.

The previous prime is 2101830018161. The next prime is 2101830018247. The reversal of 2101830018203 is 3028100381012.

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

It is not a de Polignac number, because 2101830018203 - 2¹⁰ = 2101830017179 is a prime.

It is a super-2 number, since 2×2101830018203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101830012203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779031275 + ... + 779033972.

It is an arithmetic number, because the mean of its divisors is an integer number (280451744640).

Almost surely, 2^{2101830018203} is an apocalyptic number.

2101830018203 is a deficient number, since it is larger than the sum of its proper divisors (141783938917).

2101830018203 is a wasteful number, since it uses less digits than its factorization.

2101830018203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558065337.

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 2101830018203 its reverse (3028100381012), we get a palindrome (5129930399215).

The spelling of 2101830018203 in words is "two trillion, one hundred one billion, eight hundred thirty million, eighteen thousand, two hundred three".