2111212020103 has 32 divisors (see below), whose sum is σ = 2340217184256. Its totient is φ = 1894426879488.

The previous prime is 2111212020077. The next prime is 2111212020119. The reversal of 2111212020103 is 3010202121112.

It is not a de Polignac number, because 2111212020103 - 2³⁷ = 1973773066631 is a prime.

It is a super-2 number, since 2×2111212020103² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111212020163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188276925 + ... + 188288137.

It is an arithmetic number, because the mean of its divisors is an integer number (73131787008).

Almost surely, 2^{2111212020103} is an apocalyptic number.

2111212020103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2111212020103 is a deficient number, since it is larger than the sum of its proper divisors (229005164153).

2111212020103 is a wasteful number, since it uses less digits than its factorization.

2111212020103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12783.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2111212020103 its reverse (3010202121112), we get a palindrome (5121414141215).

The spelling of 2111212020103 in words is "two trillion, one hundred eleven billion, two hundred twelve million, twenty thousand, one hundred three".