23020213 has 4 divisors (see below), whose sum is σ = 23106060. Its totient is φ = 22934368.

The previous prime is 23020201. The next prime is 23020273. The reversal of 23020213 is 31202032.

It is a happy number.

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 4028049 + 18992164 = 2007^2 + 4358^2 .

It is a cyclic number.

It is not a de Polignac number, because 23020213 - 2⁵ = 23020181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23020193 and 23020202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020273) 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, 42520 + ... + 43057.

It is an arithmetic number, because the mean of its divisors is an integer number (5776515).

Almost surely, 2^23020213 is an apocalyptic number.

It is an amenable number.

23020213 is a deficient number, since it is larger than the sum of its proper divisors (85847).

23020213 is an equidigital number, since it uses as much as digits as its factorization.

23020213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85846.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23020213 is about 4797.9384114430. The cubic root of 23020213 is about 284.4699824087.

Adding to 23020213 its reverse (31202032), we get a palindrome (54222245).

The spelling of 23020213 in words is "twenty-three million, twenty thousand, two hundred thirteen".