53342432321 has 4 divisors (see below), whose sum is σ = 53367993792. Its totient is φ = 53316870852.

The previous prime is 53342432287. The next prime is 53342432359. The reversal of 53342432321 is 12323424335.

53342432321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12323424335 = 5 ⋅2464684867.

It is a cyclic number.

It is not a de Polignac number, because 53342432321 - 2²² = 53338238017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53342432371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12777605 + ... + 12781778.

It is an arithmetic number, because the mean of its divisors is an integer number (13341998448).

Almost surely, 2^53342432321 is an apocalyptic number.

It is an amenable number.

53342432321 is a deficient number, since it is larger than the sum of its proper divisors (25561471).

53342432321 is a wasteful number, since it uses less digits than its factorization.

53342432321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25561470.

The product of its digits is 51840, while the sum is 32.

Adding to 53342432321 its reverse (12323424335), we get a palindrome (65665856656).

The spelling of 53342432321 in words is "fifty-three billion, three hundred forty-two million, four hundred thirty-two thousand, three hundred twenty-one".