53321213123 has 4 divisors (see below), whose sum is σ = 55041252288. Its totient is φ = 51601173960.

The previous prime is 53321213119. The next prime is 53321213131. The reversal of 53321213123 is 32131212335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32131212335 = 5 ⋅6426242467.

It is a cyclic number.

It is not a de Polignac number, because 53321213123 - 2² = 53321213119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53321213092 and 53321213101.

It is not an unprimeable number, because it can be changed into a prime (53321210123) 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, 860019536 + ... + 860019597.

It is an arithmetic number, because the mean of its divisors is an integer number (13760313072).

Almost surely, 2^53321213123 is an apocalyptic number.

53321213123 is a deficient number, since it is larger than the sum of its proper divisors (1720039165).

53321213123 is a wasteful number, since it uses less digits than its factorization.

53321213123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720039164.

The product of its digits is 3240, while the sum is 26.

Adding to 53321213123 its reverse (32131212335), we get a palindrome (85452425458).

The spelling of 53321213123 in words is "fifty-three billion, three hundred twenty-one million, two hundred thirteen thousand, one hundred twenty-three".