2004121320541 has 2 divisors, whose sum is σ = 2004121320542. Its totient is φ = 2004121320540.

The previous prime is 2004121320533. The next prime is 2004121320571. The reversal of 2004121320541 is 1450231214002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1852511544900 + 151609775641 = 1361070^2 + 389371^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004121320541 - 2³ = 2004121320533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2004121320521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002060660270 + 1002060660271.

It is an arithmetic number, because the mean of its divisors is an integer number (1002060660271).

Almost surely, 2^{2004121320541} is an apocalyptic number.

It is an amenable number.

2004121320541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004121320541 is an equidigital number, since it uses as much as digits as its factorization.

2004121320541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 2004121320541 its reverse (1450231214002), we get a palindrome (3454352534543).

The spelling of 2004121320541 in words is "two trillion, four billion, one hundred twenty-one million, three hundred twenty thousand, five hundred forty-one".