213331031433 has 12 divisors (see below), whose sum is σ = 331848271300. Its totient is φ = 131280634656.

The previous prime is 213331031413. The next prime is 213331031443. The reversal of 213331031433 is 334130133312.

213331031433 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 310 + 314 + 33 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32547046464 + 180783984969 = 180408^2 + 425187^2 .

It is not a de Polignac number, because 213331031433 - 2⁵ = 213331031401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213331031397 and 213331031406.

It is not an unprimeable number, because it can be changed into a prime (213331031413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 911670958 + ... + 911671191.

Almost surely, 2^213331031433 is an apocalyptic number.

It is an amenable number.

213331031433 is a deficient number, since it is larger than the sum of its proper divisors (118517239867).

213331031433 is a wasteful number, since it uses less digits than its factorization.

213331031433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823342168 (or 1823342165 counting only the distinct ones).

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

Adding to 213331031433 its reverse (334130133312), we get a palindrome (547461164745).

The spelling of 213331031433 in words is "two hundred thirteen billion, three hundred thirty-one million, thirty-one thousand, four hundred thirty-three".