513321522011 has 2 divisors, whose sum is σ = 513321522012. Its totient is φ = 513321522010.

The previous prime is 513321522001. The next prime is 513321522019. The reversal of 513321522011 is 110225123315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513321522011 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (513321522019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256660761005 + 256660761006.

It is an arithmetic number, because the mean of its divisors is an integer number (256660761006).

Almost surely, 2^513321522011 is an apocalyptic number.

513321522011 is a deficient number, since it is larger than the sum of its proper divisors (1).

513321522011 is an equidigital number, since it uses as much as digits as its factorization.

513321522011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 513321522011 its reverse (110225123315), we get a palindrome (623546645326).

The spelling of 513321522011 in words is "five hundred thirteen billion, three hundred twenty-one million, five hundred twenty-two thousand, eleven".