213231323224 has 8 divisors (see below), whose sum is σ = 399808731060. Its totient is φ = 106615661608.

The previous prime is 213231323089. The next prime is 213231323251. The reversal of 213231323224 is 422323132312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 213231323192 and 213231323201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13326957694 + ... + 13326957709.

Almost surely, 2^213231323224 is an apocalyptic number.

It is an amenable number.

213231323224 is a deficient number, since it is larger than the sum of its proper divisors (186577407836).

213231323224 is a wasteful number, since it uses less digits than its factorization.

213231323224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26653915409 (or 26653915405 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

Adding to 213231323224 its reverse (422323132312), we get a palindrome (635554455536).

The spelling of 213231323224 in words is "two hundred thirteen billion, two hundred thirty-one million, three hundred twenty-three thousand, two hundred twenty-four".