213230012101 has 2 divisors, whose sum is σ = 213230012102. Its totient is φ = 213230012100.

The previous prime is 213230012089. The next prime is 213230012173. The reversal of 213230012101 is 101210032312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210892192900 + 2337819201 = 459230^2 + 48351^2 .

It is a cyclic number.

It is not a de Polignac number, because 213230012101 - 2¹⁹ = 213229487813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213230072101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106615006050 + 106615006051.

It is an arithmetic number, because the mean of its divisors is an integer number (106615006051).

Almost surely, 2^213230012101 is an apocalyptic number.

It is an amenable number.

213230012101 is a deficient number, since it is larger than the sum of its proper divisors (1).

213230012101 is an equidigital number, since it uses as much as digits as its factorization.

213230012101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 213230012101 its reverse (101210032312), we get a palindrome (314440044413).

The spelling of 213230012101 in words is "two hundred thirteen billion, two hundred thirty million, twelve thousand, one hundred one".