501141121511 has 2 divisors, whose sum is σ = 501141121512. Its totient is φ = 501141121510.

The previous prime is 501141121501. The next prime is 501141121529. The reversal of 501141121511 is 115121141105.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501141121511 is a prime.

It is a super-2 number, since 2×501141121511² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501141121501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250570560755 + 250570560756.

It is an arithmetic number, because the mean of its divisors is an integer number (250570560756).

Almost surely, 2^501141121511 is an apocalyptic number.

501141121511 is a deficient number, since it is larger than the sum of its proper divisors (1).

501141121511 is an equidigital number, since it uses as much as digits as its factorization.

501141121511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 23.

Adding to 501141121511 its reverse (115121141105), we get a palindrome (616262262616).

The spelling of 501141121511 in words is "five hundred one billion, one hundred forty-one million, one hundred twenty-one thousand, five hundred eleven".