23120533 has 4 divisors (see below), whose sum is σ = 23171148. Its totient is φ = 23069920.

The previous prime is 23120501. The next prime is 23120551. The reversal of 23120533 is 33502132.

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 9746884 + 13373649 = 3122^2 + 3657^2 .

It is a cyclic number.

It is not a de Polignac number, because 23120533 - 2⁵ = 23120501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23120533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24616 + ... + 25537.

It is an arithmetic number, because the mean of its divisors is an integer number (5792787).

Almost surely, 2^23120533 is an apocalyptic number.

It is an amenable number.

23120533 is a deficient number, since it is larger than the sum of its proper divisors (50615).

23120533 is an equidigital number, since it uses as much as digits as its factorization.

23120533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50614.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 23120533 is about 4808.3815364424. The cubic root of 23120533 is about 284.8826150421.

Adding to 23120533 its reverse (33502132), we get a palindrome (56622665).

It can be divided in two parts, 23120 and 533, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 23120533 in words is "twenty-three million, one hundred twenty thousand, five hundred thirty-three".