23020211 has 4 divisors (see below), whose sum is σ = 23094072. Its totient is φ = 22946352.

The previous prime is 23020201. The next prime is 23020273. The reversal of 23020211 is 11202032.

It is a happy number.

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 23020211 - 2¹⁰ = 23019187 is a prime.

It is a super-2 number, since 2×23020211² = 1059860228969042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23020192 and 23020201.

It is not an unprimeable number, because it can be changed into a prime (23020201) 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, 36461 + ... + 37086.

It is an arithmetic number, because the mean of its divisors is an integer number (5773518).

Almost surely, 2^23020211 is an apocalyptic number.

23020211 is a deficient number, since it is larger than the sum of its proper divisors (73861).

23020211 is an equidigital number, since it uses as much as digits as its factorization.

23020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73860.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 23020211 is about 4797.9382030201. The cubic root of 23020211 is about 284.4699741705.

Adding to 23020211 its reverse (11202032), we get a palindrome (34222243).

The spelling of 23020211 in words is "twenty-three million, twenty thousand, two hundred eleven".