2121101103 has 8 divisors (see below), whose sum is σ = 3085238016. Its totient is φ = 1285515800.

The previous prime is 2121101083. The next prime is 2121101137. The reversal of 2121101103 is 3011011212.

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 2121101103 - 2⁵ = 2121101071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121101173) 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, 32137863 + ... + 32137928.

It is an arithmetic number, because the mean of its divisors is an integer number (385654752).

Almost surely, 2^2121101103 is an apocalyptic number.

2121101103 is a deficient number, since it is larger than the sum of its proper divisors (964136913).

2121101103 is a wasteful number, since it uses less digits than its factorization.

2121101103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64275805.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2121101103 is about 46055.4133951700. The cubic root of 2121101103 is about 1284.8540267297.

Adding to 2121101103 its reverse (3011011212), we get a palindrome (5132112315).

The spelling of 2121101103 in words is "two billion, one hundred twenty-one million, one hundred one thousand, one hundred three".