501122054431 has 2 divisors, whose sum is σ = 501122054432. Its totient is φ = 501122054430.

The previous prime is 501122054393. The next prime is 501122054479. The reversal of 501122054431 is 134450221105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 501122054431 - 2⁹ = 501122053919 is a prime.

It is a super-2 number, since 2×501122054431² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 501122054431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501122054731) 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, 250561027215 + 250561027216.

It is an arithmetic number, because the mean of its divisors is an integer number (250561027216).

Almost surely, 2^501122054431 is an apocalyptic number.

501122054431 is a deficient number, since it is larger than the sum of its proper divisors (1).

501122054431 is an equidigital number, since it uses as much as digits as its factorization.

501122054431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 501122054431 its reverse (134450221105), we get a palindrome (635572275536).

The spelling of 501122054431 in words is "five hundred one billion, one hundred twenty-two million, fifty-four thousand, four hundred thirty-one".