1021304040413 has 2 divisors, whose sum is σ = 1021304040414. Its totient is φ = 1021304040412.

The previous prime is 1021304040397. The next prime is 1021304040509. The reversal of 1021304040413 is 3140404031201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 694992330244 + 326311710169 = 833662^2 + 571237^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021304040413 - 2⁴ = 1021304040397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021304040613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510652020206 + 510652020207.

It is an arithmetic number, because the mean of its divisors is an integer number (510652020207).

Almost surely, 2^{1021304040413} is an apocalyptic number.

It is an amenable number.

1021304040413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021304040413 is an equidigital number, since it uses as much as digits as its factorization.

1021304040413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1021304040413 its reverse (3140404031201), we get a palindrome (4161708071614).

The spelling of 1021304040413 in words is "one trillion, twenty-one billion, three hundred four million, forty thousand, four hundred thirteen".