23212033 has 4 divisors (see below), whose sum is σ = 24997588. Its totient is φ = 21426480.

The previous prime is 23212009. The next prime is 23212051. The reversal of 23212033 is 33021232.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13927824 + 9284209 = 3732^2 + 3047^2 .

It is a cyclic number.

It is not a de Polignac number, because 23212033 - 2²¹ = 21114881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23211998 and 23212016.

It is not an unprimeable number, because it can be changed into a prime (23212073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892758 + ... + 892783.

It is an arithmetic number, because the mean of its divisors is an integer number (6249397).

Almost surely, 2^23212033 is an apocalyptic number.

It is an amenable number.

23212033 is a deficient number, since it is larger than the sum of its proper divisors (1785555).

23212033 is a wasteful number, since it uses less digits than its factorization.

23212033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785554.

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

The square root of 23212033 is about 4817.8867774160. The cubic root of 23212033 is about 285.2579300358.

Adding to 23212033 its reverse (33021232), we get a palindrome (56233265).

The spelling of 23212033 in words is "twenty-three million, two hundred twelve thousand, thirty-three".