210242121113 has 4 divisors (see below), whose sum is σ = 210244618788. Its totient is φ = 210239623440.

The previous prime is 210242121097. The next prime is 210242121121. The reversal of 210242121113 is 311121242012.

210242121113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 191483257744 + 18758863369 = 437588^2 + 136963^2 .

It is a cyclic number.

It is not a de Polignac number, because 210242121113 - 2⁴ = 210242121097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210242127113) 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 3 ways as a sum of consecutive naturals, for example, 1118006 + ... + 1292447.

It is an arithmetic number, because the mean of its divisors is an integer number (52561154697).

Almost surely, 2^210242121113 is an apocalyptic number.

It is an amenable number.

210242121113 is a deficient number, since it is larger than the sum of its proper divisors (2497675).

210242121113 is an equidigital number, since it uses as much as digits as its factorization.

210242121113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497674.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 210242121113 its reverse (311121242012), we get a palindrome (521363363125).

The spelling of 210242121113 in words is "two hundred ten billion, two hundred forty-two million, one hundred twenty-one thousand, one hundred thirteen".