103240205 has 32 divisors (see below), whose sum is σ = 135168000. Its totient is φ = 75442752.

The previous prime is 103240187. The next prime is 103240213. The reversal of 103240205 is 502042301.

It is a cyclic number.

It is not a de Polignac number, because 103240205 - 2⁶ = 103240141 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 518696 + ... + 518894.

It is an arithmetic number, because the mean of its divisors is an integer number (4224000).

Almost surely, 2^103240205 is an apocalyptic number.

It is an amenable number.

103240205 is a deficient number, since it is larger than the sum of its proper divisors (31927795).

103240205 is a wasteful number, since it uses less digits than its factorization.

103240205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 103240205 is about 10160.7187245785. The cubic root of 103240205 is about 469.1189242626.

Adding to 103240205 its reverse (502042301), we get a palindrome (605282506).

The spelling of 103240205 in words is "one hundred three million, two hundred forty thousand, two hundred five".