501312552031 has 2 divisors, whose sum is σ = 501312552032. Its totient is φ = 501312552030.

The previous prime is 501312552019. The next prime is 501312552079. The reversal of 501312552031 is 130255213105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 501312552031 - 2²⁵ = 501278997599 is a prime.

It is a super-2 number, since 2×501312552031² (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 (501312552001) 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, 250656276015 + 250656276016.

It is an arithmetic number, because the mean of its divisors is an integer number (250656276016).

Almost surely, 2^501312552031 is an apocalyptic number.

501312552031 is a deficient number, since it is larger than the sum of its proper divisors (1).

501312552031 is an equidigital number, since it uses as much as digits as its factorization.

501312552031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 501312552031 its reverse (130255213105), we get a palindrome (631567765136).

The spelling of 501312552031 in words is "five hundred one billion, three hundred twelve million, five hundred fifty-two thousand, thirty-one".