213133223331 has 18 divisors (see below), whose sum is σ = 358121811372. Its totient is φ = 121790413080.

The previous prime is 213133223323. The next prime is 213133223419. The reversal of 213133223331 is 133322331312.

213133223331 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 3 + 322 + 3 + 331 = 666.

It is not a de Polignac number, because 213133223331 - 2³ = 213133223323 is a prime.

It is a super-2 number, since 2×213133223331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213133223295 and 213133223304.

It is not an unprimeable number, because it can be changed into a prime (213133223431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 241647205 + ... + 241648086.

Almost surely, 2^213133223331 is an apocalyptic number.

213133223331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213133223331 is a deficient number, since it is larger than the sum of its proper divisors (144988588041).

213133223331 is a wasteful number, since it uses less digits than its factorization.

213133223331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483295311 (or 483295301 counting only the distinct ones).

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

Adding to 213133223331 its reverse (133322331312), we get a palindrome (346455554643).

The spelling of 213133223331 in words is "two hundred thirteen billion, one hundred thirty-three million, two hundred twenty-three thousand, three hundred thirty-one".