210243023121 has 16 divisors (see below), whose sum is σ = 281019816000. Its totient is φ = 139814535168.

The previous prime is 210243023113. The next prime is 210243023167. The reversal of 210243023121 is 121320342012.

It is not a de Polignac number, because 210243023121 - 2³ = 210243023113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210243023171) 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, 2023185 + ... + 2124561.

It is an arithmetic number, because the mean of its divisors is an integer number (17563738500).

Almost surely, 2^210243023121 is an apocalyptic number.

It is an amenable number.

210243023121 is a deficient number, since it is larger than the sum of its proper divisors (70776792879).

210243023121 is a wasteful number, since it uses less digits than its factorization.

210243023121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103088.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 210243023121 its reverse (121320342012), we get a palindrome (331563365133).

The spelling of 210243023121 in words is "two hundred ten billion, two hundred forty-three million, twenty-three thousand, one hundred twenty-one".