212330023 has 4 divisors (see below), whose sum is σ = 212385600. Its totient is φ = 212274448.

The previous prime is 212330003. The next prime is 212330033. The reversal of 212330023 is 320033212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212330023 - 2⁵ = 212329991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212329979 and 212330006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212330003) 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, 21598 + ... + 29851.

It is an arithmetic number, because the mean of its divisors is an integer number (53096400).

Almost surely, 2^212330023 is an apocalyptic number.

212330023 is a deficient number, since it is larger than the sum of its proper divisors (55577).

212330023 is an equidigital number, since it uses as much as digits as its factorization.

212330023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55576.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 212330023 is about 14571.5484077705. The cubic root of 212330023 is about 596.5824439586.

Adding to 212330023 its reverse (320033212), we get a palindrome (532363235).

The spelling of 212330023 in words is "two hundred twelve million, three hundred thirty thousand, twenty-three".