2112103505 has 8 divisors (see below), whose sum is σ = 2544623424. Its totient is φ = 1682950000.

The previous prime is 2112103489. The next prime is 2112103529. The reversal of 2112103505 is 5053012112.

It is a happy number.

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

It is not a de Polignac number, because 2112103505 - 2⁴ = 2112103489 is a prime.

It is a Duffinian 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, 840221 + ... + 842730.

It is an arithmetic number, because the mean of its divisors is an integer number (318077928).

Almost surely, 2^2112103505 is an apocalyptic number.

It is an amenable number.

2112103505 is a deficient number, since it is larger than the sum of its proper divisors (432519919).

2112103505 is a wasteful number, since it uses less digits than its factorization.

2112103505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683207.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2112103505 is about 45957.6272777436. The cubic root of 2112103505 is about 1283.0346909893.

Adding to 2112103505 its reverse (5053012112), we get a palindrome (7165115617).

The spelling of 2112103505 in words is "two billion, one hundred twelve million, one hundred three thousand, five hundred five".