501711330021413 has 2 divisors, whose sum is σ = 501711330021414. Its totient is φ = 501711330021412.

The previous prime is 501711330021383. The next prime is 501711330021469. The reversal of 501711330021413 is 314120033117105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287890694544964 + 213820635476449 = 16967342^2 + 14622607^2 .

It is a cyclic number.

It is not a de Polignac number, because 501711330021413 - 2²² = 501711325827109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 501711330021413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501711360021413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250855665010706 + 250855665010707.

It is an arithmetic number, because the mean of its divisors is an integer number (250855665010707).

Almost surely, 2^{501711330021413} is an apocalyptic number.

It is an amenable number.

501711330021413 is a deficient number, since it is larger than the sum of its proper divisors (1).

501711330021413 is an equidigital number, since it uses as much as digits as its factorization.

501711330021413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

Adding to 501711330021413 its reverse (314120033117105), we get a palindrome (815831363138518).

The spelling of 501711330021413 in words is "five hundred one trillion, seven hundred eleven billion, three hundred thirty million, twenty-one thousand, four hundred thirteen".