52420124321 has 2 divisors, whose sum is σ = 52420124322. Its totient is φ = 52420124320.

The previous prime is 52420124311. The next prime is 52420124387. The reversal of 52420124321 is 12342102425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33815164321 + 18604960000 = 183889^2 + 136400^2 .

It is a cyclic number.

It is not a de Polignac number, because 52420124321 - 2¹⁸ = 52419862177 is a prime.

It is a super-2 number, since 2×52420124321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52420124311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26210062160 + 26210062161.

It is an arithmetic number, because the mean of its divisors is an integer number (26210062161).

Almost surely, 2^52420124321 is an apocalyptic number.

It is an amenable number.

52420124321 is a deficient number, since it is larger than the sum of its proper divisors (1).

52420124321 is an equidigital number, since it uses as much as digits as its factorization.

52420124321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 52420124321 its reverse (12342102425), we get a palindrome (64762226746).

The spelling of 52420124321 in words is "fifty-two billion, four hundred twenty million, one hundred twenty-four thousand, three hundred twenty-one".