213311323332 has 18 divisors (see below), whose sum is σ = 539203622958. Its totient is φ = 71103774432.

The previous prime is 213311323331. The next prime is 213311323363. The reversal of 213311323332 is 233323113312.

213311323332 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 1 + 1 + 323 + 332 = 666.

It can be written as a sum of positive squares in only one way, i.e., 197114688576 + 16196634756 = 443976^2 + 127266^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 213311323296 and 213311323305.

It is not an unprimeable number, because it can be changed into a prime (213311323331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2962657233 + ... + 2962657304.

It is an arithmetic number, because the mean of its divisors is an integer number (29955756831).

Almost surely, 2^213311323332 is an apocalyptic number.

It is an amenable number.

213311323332 is an abundant number, since it is smaller than the sum of its proper divisors (325892299626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213311323332 is a wasteful number, since it uses less digits than its factorization.

213311323332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5925314547 (or 5925314542 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 213311323332 its reverse (233323113312), we get a palindrome (446634436644).

The spelling of 213311323332 in words is "two hundred thirteen billion, three hundred eleven million, three hundred twenty-three thousand, three hundred thirty-two".