103105121 has 8 divisors (see below), whose sum is σ = 121897920. Its totient is φ = 85328208.

The previous prime is 103105117. The next prime is 103105129. The reversal of 103105121 is 121501301.

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

It is not a de Polignac number, because 103105121 - 2² = 103105117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103105096 and 103105105.

It is not an unprimeable number, because it can be changed into a prime (103105129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253751 + ... + 254156.

It is an arithmetic number, because the mean of its divisors is an integer number (15237240).

Almost surely, 2^103105121 is an apocalyptic number.

It is an amenable number.

103105121 is a deficient number, since it is larger than the sum of its proper divisors (18792799).

103105121 is an equidigital number, since it uses as much as digits as its factorization.

103105121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507943.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 103105121 is about 10154.0691843221. The cubic root of 103105121 is about 468.9142297195.

Adding to 103105121 its reverse (121501301), we get a palindrome (224606422).

The spelling of 103105121 in words is "one hundred three million, one hundred five thousand, one hundred twenty-one".