2104111421321 has 8 divisors (see below), whose sum is σ = 2589675595584. Its totient is φ = 1664791454160.

The previous prime is 2104111421317. The next prime is 2104111421329. The reversal of 2104111421321 is 1231241114012.

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 2104111421321 - 2² = 2104111421317 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2104111421329) 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, 11561051675 + ... + 11561051856.

It is an arithmetic number, because the mean of its divisors is an integer number (323709449448).

Almost surely, 2^{2104111421321} is an apocalyptic number.

It is an amenable number.

2104111421321 is a deficient number, since it is larger than the sum of its proper divisors (485564174263).

2104111421321 is a wasteful number, since it uses less digits than its factorization.

2104111421321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23122103551.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 2104111421321 its reverse (1231241114012), we get a palindrome (3335352535333).

The spelling of 2104111421321 in words is "two trillion, one hundred four billion, one hundred eleven million, four hundred twenty-one thousand, three hundred twenty-one".