103520213 has 2 divisors, whose sum is σ = 103520214. Its totient is φ = 103520212.

The previous prime is 103520177. The next prime is 103520237. The reversal of 103520213 is 312025301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98863249 + 4656964 = 9943^2 + 2158^2 .

It is a cyclic number.

It is not a de Polignac number, because 103520213 - 2⁶ = 103520149 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 103520191 and 103520200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103520513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51760106 + 51760107.

It is an arithmetic number, because the mean of its divisors is an integer number (51760107).

Almost surely, 2^103520213 is an apocalyptic number.

It is an amenable number.

103520213 is a deficient number, since it is larger than the sum of its proper divisors (1).

103520213 is an equidigital number, since it uses as much as digits as its factorization.

103520213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 103520213 is about 10174.4883409437. The cubic root of 103520213 is about 469.5426560663.

Adding to 103520213 its reverse (312025301), we get a palindrome (415545514).

The spelling of 103520213 in words is "one hundred three million, five hundred twenty thousand, two hundred thirteen".