1048204021 has 2 divisors, whose sum is σ = 1048204022. Its totient is φ = 1048204020.

The previous prime is 1048204013. The next prime is 1048204051. The reversal of 1048204021 is 1204028401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 985080996 + 63123025 = 31386^2 + 7945^2 .

It is a cyclic number.

It is not a de Polignac number, because 1048204021 - 2³ = 1048204013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1048203983 and 1048204001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1048204051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524102010 + 524102011.

It is an arithmetic number, because the mean of its divisors is an integer number (524102011).

Almost surely, 2^1048204021 is an apocalyptic number.

It is an amenable number.

1048204021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1048204021 is an equidigital number, since it uses as much as digits as its factorization.

1048204021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1048204021 is about 32375.9790739987. The cubic root of 1048204021 is about 1015.8165256170.

The spelling of 1048204021 in words is "one billion, forty-eight million, two hundred four thousand, twenty-one".