213231012223 has 16 divisors (see below), whose sum is σ = 228725890560. Its totient is φ = 198066211200.

The previous prime is 213231012199. The next prime is 213231012233. The reversal of 213231012223 is 322210132312.

It is not a de Polignac number, because 213231012223 - 2⁹ = 213231011711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213231012194 and 213231012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213231012233) 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, 3367768 + ... + 3430498.

It is an arithmetic number, because the mean of its divisors is an integer number (14295368160).

Almost surely, 2^213231012223 is an apocalyptic number.

213231012223 is a deficient number, since it is larger than the sum of its proper divisors (15494878337).

213231012223 is a wasteful number, since it uses less digits than its factorization.

213231012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65358.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213231012223 its reverse (322210132312), we get a palindrome (535441144535).

The spelling of 213231012223 in words is "two hundred thirteen billion, two hundred thirty-one million, twelve thousand, two hundred twenty-three".