1204020413 has 2 divisors, whose sum is σ = 1204020414. Its totient is φ = 1204020412.

The previous prime is 1204020407. The next prime is 1204020437. The reversal of 1204020413 is 3140204021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 922519129 + 281501284 = 30373^2 + 16778^2 .

It is an emirp because it is prime and its reverse (3140204021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1204020413 - 2⁸ = 1204020157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1204020391 and 1204020400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204020613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602010206 + 602010207.

It is an arithmetic number, because the mean of its divisors is an integer number (602010207).

Almost surely, 2^1204020413 is an apocalyptic number.

It is an amenable number.

1204020413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204020413 is an equidigital number, since it uses as much as digits as its factorization.

1204020413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1204020413 is about 34698.9972909881. The cubic root of 1204020413 is about 1063.8440036083.

Adding to 1204020413 its reverse (3140204021), we get a palindrome (4344224434).

The spelling of 1204020413 in words is "one billion, two hundred four million, twenty thousand, four hundred thirteen".