103310121605 has 8 divisors (see below), whose sum is σ = 124008111000. Its totient is φ = 82624120576.

The previous prime is 103310121569. The next prime is 103310121619. The reversal of 103310121605 is 506121013301.

It can be written as a sum of positive squares in 4 ways, for example, as 6643228036 + 96666893569 = 81506^2 + 310913^2 .

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 103310121605 - 2¹² = 103310117509 is a prime.

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, 2978120 + ... + 3012609.

It is an arithmetic number, because the mean of its divisors is an integer number (15501013875).

Almost surely, 2^103310121605 is an apocalyptic number.

It is an amenable number.

103310121605 is a deficient number, since it is larger than the sum of its proper divisors (20697989395).

103310121605 is an equidigital number, since it uses as much as digits as its factorization.

103310121605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5994183.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 103310121605 its reverse (506121013301), we get a palindrome (609431134906).

The spelling of 103310121605 in words is "one hundred three billion, three hundred ten million, one hundred twenty-one thousand, six hundred five".