53213321303 has 4 divisors (see below), whose sum is σ = 53217593928. Its totient is φ = 53209048680.

The previous prime is 53213321221. The next prime is 53213321321. The reversal of 53213321303 is 30312331235.

53213321303 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53213321303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53213321333) 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, 2117576 + ... + 2142557.

It is an arithmetic number, because the mean of its divisors is an integer number (13304398482).

Almost surely, 2^53213321303 is an apocalyptic number.

53213321303 is a deficient number, since it is larger than the sum of its proper divisors (4272625).

53213321303 is a wasteful number, since it uses less digits than its factorization.

53213321303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272624.

The product of its (nonzero) digits is 4860, while the sum is 26.

Adding to 53213321303 its reverse (30312331235), we get a palindrome (83525652538).

The spelling of 53213321303 in words is "fifty-three billion, two hundred thirteen million, three hundred twenty-one thousand, three hundred three".