101206213 has 2 divisors, whose sum is σ = 101206214. Its totient is φ = 101206212.

The previous prime is 101206153. The next prime is 101206243. The reversal of 101206213 is 312602101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101163364 + 42849 = 10058^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 101206213 - 2¹³ = 101198021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101206243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50603106 + 50603107.

It is an arithmetic number, because the mean of its divisors is an integer number (50603107).

Almost surely, 2^101206213 is an apocalyptic number.

It is an amenable number.

101206213 is a deficient number, since it is larger than the sum of its proper divisors (1).

101206213 is an equidigital number, since it uses as much as digits as its factorization.

101206213 is an odious number, because the sum of its binary digits is odd.

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

The square root of 101206213 is about 10060.1298699371. The cubic root of 101206213 is about 466.0176778646.

Adding to 101206213 its reverse (312602101), we get a palindrome (413808314).

The spelling of 101206213 in words is "one hundred one million, two hundred six thousand, two hundred thirteen".