211020103121 has 8 divisors (see below), whose sum is σ = 211300580040. Its totient is φ = 210739802112.

The previous prime is 211020103067. The next prime is 211020103153. The reversal of 211020103121 is 121301020112.

211020103121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 117692908096 + 93327195025 = 343064^2 + 305495^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 211020103121 - 2²⁶ = 210952994257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211020103096 and 211020103105.

It is not an unprimeable number, because it can be changed into a prime (211020103321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2449841 + ... + 2534513.

It is an arithmetic number, because the mean of its divisors is an integer number (26412572505).

Almost surely, 2^211020103121 is an apocalyptic number.

It is an amenable number.

211020103121 is a deficient number, since it is larger than the sum of its proper divisors (280476919).

211020103121 is a wasteful number, since it uses less digits than its factorization.

211020103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87955.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 211020103121 its reverse (121301020112), we get a palindrome (332321123233).

The spelling of 211020103121 in words is "two hundred eleven billion, twenty million, one hundred three thousand, one hundred twenty-one".