2104326215021 has 4 divisors (see below), whose sum is σ = 2104374027132. Its totient is φ = 2104278402912.

The previous prime is 2104326214993. The next prime is 2104326215143. The reversal of 2104326215021 is 1205126234012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1397951522500 + 706374692521 = 1182350^2 + 840461^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104326215021 - 2⁶ = 2104326214957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104326214021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23839976 + ... + 23928081.

It is an arithmetic number, because the mean of its divisors is an integer number (526093506783).

Almost surely, 2^{2104326215021} is an apocalyptic number.

It is an amenable number.

2104326215021 is a deficient number, since it is larger than the sum of its proper divisors (47812111).

2104326215021 is an equidigital number, since it uses as much as digits as its factorization.

2104326215021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47812110.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 2104326215021 in words is "two trillion, one hundred four billion, three hundred twenty-six million, two hundred fifteen thousand, twenty-one".