103205801 has 2 divisors, whose sum is σ = 103205802. Its totient is φ = 103205800.

The previous prime is 103205741. The next prime is 103205821. The reversal of 103205801 is 108502301.

It is an a-pointer prime, because the next prime (103205821) can be obtained adding 103205801 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99301225 + 3904576 = 9965^2 + 1976^2 .

It is an emirp because it is prime and its reverse (108502301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103205801 is a prime.

It is not a weakly prime, because it can be changed into another prime (103205821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51602900 + 51602901.

It is an arithmetic number, because the mean of its divisors is an integer number (51602901).

Almost surely, 2^103205801 is an apocalyptic number.

It is an amenable number.

103205801 is a deficient number, since it is larger than the sum of its proper divisors (1).

103205801 is an equidigital number, since it uses as much as digits as its factorization.

103205801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 103205801 is about 10159.0255930379. The cubic root of 103205801 is about 469.0668083884.

The spelling of 103205801 in words is "one hundred three million, two hundred five thousand, eight hundred one".