53002311321 has 4 divisors (see below), whose sum is σ = 70669748432. Its totient is φ = 35334874212.

The previous prime is 53002311319. The next prime is 53002311331. The reversal of 53002311321 is 12311320035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53002311321 - 2¹ = 53002311319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53002311331) 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 in 3 ways as a sum of consecutive naturals, for example, 8833718551 + ... + 8833718556.

It is an arithmetic number, because the mean of its divisors is an integer number (17667437108).

Almost surely, 2^53002311321 is an apocalyptic number.

It is an amenable number.

53002311321 is a deficient number, since it is larger than the sum of its proper divisors (17667437111).

53002311321 is a wasteful number, since it uses less digits than its factorization.

53002311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17667437110.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 53002311321 its reverse (12311320035), we get a palindrome (65313631356).

The spelling of 53002311321 in words is "fifty-three billion, two million, three hundred eleven thousand, three hundred twenty-one".