103405220205 has 32 divisors (see below), whose sum is σ = 190818566400. Its totient is φ = 46837274112.

The previous prime is 103405220201. The next prime is 103405220213. The reversal of 103405220205 is 502022504301.

It is not a de Polignac number, because 103405220205 - 2² = 103405220201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103405220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4506040 + ... + 4528929.

It is an arithmetic number, because the mean of its divisors is an integer number (5963080200).

Almost surely, 2^103405220205 is an apocalyptic number.

103405220205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103405220205 is a deficient number, since it is larger than the sum of its proper divisors (87413346195).

103405220205 is a wasteful number, since it uses less digits than its factorization.

103405220205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9035093.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 103405220205 its reverse (502022504301), we get a palindrome (605427724506).

It can be divided in two parts, 103405 and 220205, that added together give a triangular number (323610 = T₈₀₄).

The spelling of 103405220205 in words is "one hundred three billion, four hundred five million, two hundred twenty thousand, two hundred five".