2104333021 has 16 divisors (see below), whose sum is σ = 2458612224. Its totient is φ = 1763547264.

The previous prime is 2104333019. The next prime is 2104333027. The reversal of 2104333021 is 1203334012.

It is a cyclic number.

It is not a de Polignac number, because 2104333021 - 2¹ = 2104333019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2104333021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104333027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396441 + ... + 401713.

It is an arithmetic number, because the mean of its divisors is an integer number (153663264).

Almost surely, 2^2104333021 is an apocalyptic number.

It is an amenable number.

2104333021 is a deficient number, since it is larger than the sum of its proper divisors (354279203).

2104333021 is a wasteful number, since it uses less digits than its factorization.

2104333021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6540.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2104333021 is about 45873.0097224937. The cubic root of 2104333021 is about 1281.4593180731.

Adding to 2104333021 its reverse (1203334012), we get a palindrome (3307667033).

Subtracting from 2104333021 its reverse (1203334012), we obtain a palindrome (900999009).

The spelling of 2104333021 in words is "two billion, one hundred four million, three hundred thirty-three thousand, twenty-one".