53320350121 has 2 divisors, whose sum is σ = 53320350122. Its totient is φ = 53320350120.

The previous prime is 53320350119. The next prime is 53320350133. The reversal of 53320350121 is 12105302335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39316941225 + 14003408896 = 198285^2 + 118336^2 .

It is a cyclic number.

It is not a de Polignac number, because 53320350121 - 2¹ = 53320350119 is a prime.

Together with 53320350119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53320350821) 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, 26660175060 + 26660175061.

It is an arithmetic number, because the mean of its divisors is an integer number (26660175061).

Almost surely, 2^53320350121 is an apocalyptic number.

It is an amenable number.

53320350121 is a deficient number, since it is larger than the sum of its proper divisors (1).

53320350121 is an equidigital number, since it uses as much as digits as its factorization.

53320350121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 53320350121 its reverse (12105302335), we get a palindrome (65425652456).

The spelling of 53320350121 in words is "fifty-three billion, three hundred twenty million, three hundred fifty thousand, one hundred twenty-one".