210213023121113 has 16 divisors (see below), whose sum is σ = 218987197120272. Its totient is φ = 201616107264000.

The previous prime is 210213023121071. The next prime is 210213023121121. The reversal of 210213023121113 is 311121320312012.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 164499914365504 + 45713108755609 = 12825752^2 + 6761147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210213023121113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210213013121113) 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, 17753318 + ... + 27122063.

It is an arithmetic number, because the mean of its divisors is an integer number (13686699820017).

Almost surely, 2^{210213023121113} is an apocalyptic number.

It is an amenable number.

210213023121113 is a deficient number, since it is larger than the sum of its proper divisors (8774173999159).

210213023121113 is a wasteful number, since it uses less digits than its factorization.

210213023121113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44877356.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 210213023121113 its reverse (311121320312012), we get a palindrome (521334343433125).

The spelling of 210213023121113 in words is "two hundred ten trillion, two hundred thirteen billion, twenty-three million, one hundred twenty-one thousand, one hundred thirteen".