2104135121 has 8 divisors (see below), whose sum is σ = 2318148288. Its totient is φ = 1893910000.

The previous prime is 2104135109. The next prime is 2104135123. The reversal of 2104135121 is 1215314012.

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 2104135121 - 2¹⁸ = 2103872977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2104135093 and 2104135102.

It is not an unprimeable number, because it can be changed into a prime (2104135123) 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, 945845 + ... + 948066.

It is an arithmetic number, because the mean of its divisors is an integer number (289768536).

Almost surely, 2^2104135121 is an apocalyptic number.

It is an amenable number.

2104135121 is a deficient number, since it is larger than the sum of its proper divisors (214013167).

2104135121 is a wasteful number, since it uses less digits than its factorization.

2104135121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894023.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2104135121 is about 45870.8526299654. The cubic root of 2104135121 is about 1281.4191456056.

Adding to 2104135121 its reverse (1215314012), we get a palindrome (3319449133).

The spelling of 2104135121 in words is "two billion, one hundred four million, one hundred thirty-five thousand, one hundred twenty-one".