213332101 has 2 divisors, whose sum is σ = 213332102. Its totient is φ = 213332100.

The previous prime is 213332081. The next prime is 213332137. The reversal of 213332101 is 101233312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183629601 + 29702500 = 13551^2 + 5450^2 .

It is a cyclic number.

It is not a de Polignac number, because 213332101 - 2²¹ = 211234949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213332191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106666050 + 106666051.

It is an arithmetic number, because the mean of its divisors is an integer number (106666051).

Almost surely, 2^213332101 is an apocalyptic number.

It is an amenable number.

213332101 is a deficient number, since it is larger than the sum of its proper divisors (1).

213332101 is an equidigital number, since it uses as much as digits as its factorization.

213332101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 213332101 is about 14605.8926806957. The cubic root of 213332101 is about 597.5194823336.

Adding to 213332101 its reverse (101233312), we get a palindrome (314565413).

The spelling of 213332101 in words is "two hundred thirteen million, three hundred thirty-two thousand, one hundred one".