53020212321 has 16 divisors (see below), whose sum is σ = 71650484928. Its totient is φ = 34871116800.

The previous prime is 53020212257. The next prime is 53020212383. The reversal of 53020212321 is 12321202035.

It is not a de Polignac number, because 53020212321 - 2⁶ = 53020212257 is a prime.

It is a super-2 number, since 2×53020212321² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53020212521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265320 + ... + 420041.

It is an arithmetic number, because the mean of its divisors is an integer number (4478155308).

Almost surely, 2^53020212321 is an apocalyptic number.

It is an amenable number.

53020212321 is a deficient number, since it is larger than the sum of its proper divisors (18630272607).

53020212321 is a wasteful number, since it uses less digits than its factorization.

53020212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685712.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 53020212321 its reverse (12321202035), we get a palindrome (65341414356).

The spelling of 53020212321 in words is "fifty-three billion, twenty million, two hundred twelve thousand, three hundred twenty-one".