123310205 has 8 divisors (see below), whose sum is σ = 148041432. Its totient is φ = 98602048.

The previous prime is 123310189. The next prime is 123310223. The reversal of 123310205 is 502013321.

It can be written as a sum of positive squares in 4 ways, for example, as 7941124 + 115369081 = 2818^2 + 10741^2 .

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 123310205 - 2⁴ = 123310189 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, 9839 + ... + 18531.

It is an arithmetic number, because the mean of its divisors is an integer number (18505179).

Almost surely, 2^123310205 is an apocalyptic number.

It is an amenable number.

123310205 is a deficient number, since it is larger than the sum of its proper divisors (24731227).

123310205 is an equidigital number, since it uses as much as digits as its factorization.

123310205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11535.

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

The square root of 123310205 is about 11104.5128213713. The cubic root of 123310205 is about 497.7367104995.

Adding to 123310205 its reverse (502013321), we get a palindrome (625323526).

The spelling of 123310205 in words is "one hundred twenty-three million, three hundred ten thousand, two hundred five".