213023332 has 12 divisors (see below), whose sum is σ = 388999296. Its totient is φ = 101880680.

The previous prime is 213023297. The next prime is 213023339. The reversal of 213023332 is 233320312.

It is a happy number.

213023332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213023339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157644 + ... + 1157827.

It is an arithmetic number, because the mean of its divisors is an integer number (32416608).

Almost surely, 2^213023332 is an apocalyptic number.

It is an amenable number.

213023332 is a deficient number, since it is larger than the sum of its proper divisors (175975964).

213023332 is a wasteful number, since it uses less digits than its factorization.

213023332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315498 (or 2315496 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 213023332 is about 14595.3188385866. The cubic root of 213023332 is about 597.2310672686.

Adding to 213023332 its reverse (233320312), we get a palindrome (446343644).

The spelling of 213023332 in words is "two hundred thirteen million, twenty-three thousand, three hundred thirty-two".