213311323303 has 16 divisors (see below), whose sum is σ = 240279943680. Its totient is φ = 187892157024.

The previous prime is 213311323273. The next prime is 213311323327. The reversal of 213311323303 is 303323113312.

It is not a de Polignac number, because 213311323303 - 2²⁵ = 213277768871 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 (213311323363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726051 + ... + 976612.

It is an arithmetic number, because the mean of its divisors is an integer number (15017496480).

Almost surely, 2^213311323303 is an apocalyptic number.

213311323303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

213311323303 is a deficient number, since it is larger than the sum of its proper divisors (26968620377).

213311323303 is a wasteful number, since it uses less digits than its factorization.

213311323303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703118.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 213311323303 its reverse (303323113312), we get a palindrome (516634436615).

The spelling of 213311323303 in words is "two hundred thirteen billion, three hundred eleven million, three hundred twenty-three thousand, three hundred three".