211013230121 has 16 divisors (see below), whose sum is σ = 218197670400. Its totient is φ = 203852755200.

The previous prime is 211013230093. The next prime is 211013230151. The reversal of 211013230121 is 121032310112.

It is a cyclic number.

It is not a de Polignac number, because 211013230121 - 2³⁴ = 193833360937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211013230121.

It is not an unprimeable number, because it can be changed into a prime (211013230151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80877665 + ... + 80880273.

It is an arithmetic number, because the mean of its divisors is an integer number (13637354400).

Almost surely, 2^211013230121 is an apocalyptic number.

It is an amenable number.

211013230121 is a deficient number, since it is larger than the sum of its proper divisors (7184440279).

211013230121 is a wasteful number, since it uses less digits than its factorization.

211013230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211013230121 its reverse (121032310112), we get a palindrome (332045540233).

The spelling of 211013230121 in words is "two hundred eleven billion, thirteen million, two hundred thirty thousand, one hundred twenty-one".