213012111112301 has 16 divisors (see below), whose sum is σ = 222405393870000. Its totient is φ = 203755812374016.

The previous prime is 213012111112267. The next prime is 213012111112351. The reversal of 213012111112301 is 103211111210312.

It can be written as a sum of positive squares in 8 ways, for example, as 22209550715401 + 190802560396900 = 4712701^2 + 13813130^2 .

It is a cyclic number.

It is not a de Polignac number, because 213012111112301 - 2²² = 213012106917997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213012111112351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22646705 + ... + 30641433.

It is an arithmetic number, because the mean of its divisors is an integer number (13900337116875).

Almost surely, 2^{213012111112301} is an apocalyptic number.

It is an amenable number.

213012111112301 is a deficient number, since it is larger than the sum of its proper divisors (9393282757699).

213012111112301 is a wasteful number, since it uses less digits than its factorization.

213012111112301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8003296.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 213012111112301 its reverse (103211111210312), we get a palindrome (316223222322613).

The spelling of 213012111112301 in words is "two hundred thirteen trillion, twelve billion, one hundred eleven million, one hundred twelve thousand, three hundred one".