20230211 has 4 divisors (see below), whose sum is σ = 20389632. Its totient is φ = 20070792.

The previous prime is 20230201. The next prime is 20230219. The reversal of 20230211 is 11203202.

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 20230211 - 2²² = 16035907 is a prime.

It is a super-2 number, since 2×20230211² = 818522874209042, 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 = 20230192 and 20230201.

It is not an unprimeable number, because it can be changed into a prime (20230219) 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, 79520 + ... + 79773.

It is an arithmetic number, because the mean of its divisors is an integer number (5097408).

Almost surely, 2^20230211 is an apocalyptic number.

20230211 is a deficient number, since it is larger than the sum of its proper divisors (159421).

20230211 is a wasteful number, since it uses less digits than its factorization.

20230211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159420.

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

The square root of 20230211 is about 4497.8006847792. The cubic root of 20230211 is about 272.4792723341.

Adding to 20230211 its reverse (11203202), we get a palindrome (31433413).

The spelling of 20230211 in words is "twenty million, two hundred thirty thousand, two hundred eleven".