10420306205 has 8 divisors (see below), whose sum is σ = 12547046232. Its totient is φ = 8307792448.

The previous prime is 10420306177. The next prime is 10420306223. The reversal of 10420306205 is 50260302401.

It can be written as a sum of positive squares in 4 ways, for example, as 5261906521 + 5158399684 = 72539^2 + 71822^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10420306205 - 2⁸ = 10420305949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3554954 + ... + 3557883.

It is an arithmetic number, because the mean of its divisors is an integer number (1568380779).

Almost surely, 2^10420306205 is an apocalyptic number.

It is an amenable number.

10420306205 is a deficient number, since it is larger than the sum of its proper divisors (2126740027).

10420306205 is an equidigital number, since it uses as much as digits as its factorization.

10420306205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7113135.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 10420306205 its reverse (50260302401), we get a palindrome (60680608606).

The spelling of 10420306205 in words is "ten billion, four hundred twenty million, three hundred six thousand, two hundred five".