2121304101 has 8 divisors (see below), whose sum is σ = 3232463424. Its totient is φ = 1212173760.

The previous prime is 2121304061. The next prime is 2121304169. The reversal of 2121304101 is 1014031212.

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

It is not a de Polignac number, because 2121304101 - 2⁶ = 2121304037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121304181) 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, 50507220 + ... + 50507261.

It is an arithmetic number, because the mean of its divisors is an integer number (404057928).

Almost surely, 2^2121304101 is an apocalyptic number.

2121304101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2121304101 is a deficient number, since it is larger than the sum of its proper divisors (1111159323).

2121304101 is a wasteful number, since it uses less digits than its factorization.

2121304101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101014491.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2121304101 is about 46057.6171876054. The cubic root of 2121304101 is about 1284.8950140070.

Adding to 2121304101 its reverse (1014031212), we get a palindrome (3135335313).

The spelling of 2121304101 in words is "two billion, one hundred twenty-one million, three hundred four thousand, one hundred one".