3804312430021 has 2 divisors, whose sum is σ = 3804312430022. Its totient is φ = 3804312430020.

The previous prime is 3804312430007. The next prime is 3804312430027. The reversal of 3804312430021 is 1200342134083.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3790614302500 + 13698127521 = 1946950^2 + 117039^2 .

It is a cyclic number.

It is not a de Polignac number, because 3804312430021 - 2³⁵ = 3769952691653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3804312430027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1902156215010 + 1902156215011.

It is an arithmetic number, because the mean of its divisors is an integer number (1902156215011).

Almost surely, 2^{3804312430021} is an apocalyptic number.

It is an amenable number.

3804312430021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3804312430021 is an equidigital number, since it uses as much as digits as its factorization.

3804312430021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 3804312430021 in words is "three trillion, eight hundred four billion, three hundred twelve million, four hundred thirty thousand, twenty-one".