23211203230211 has 4 divisors (see below), whose sum is σ = 23211229671624. Its totient is φ = 23211176788800.

The previous prime is 23211203230183. The next prime is 23211203230291. The reversal of 23211203230211 is 11203230211232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23211203230211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23211203230291) 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, 11857070 + ... + 13675251.

It is an arithmetic number, because the mean of its divisors is an integer number (5802807417906).

Almost surely, 2^{23211203230211} is an apocalyptic number.

23211203230211 is a deficient number, since it is larger than the sum of its proper divisors (26441413).

23211203230211 is an equidigital number, since it uses as much as digits as its factorization.

23211203230211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26441412.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 23211203230211 its reverse (11203230211232), we get a palindrome (34414433441443).

The spelling of 23211203230211 in words is "twenty-three trillion, two hundred eleven billion, two hundred three million, two hundred thirty thousand, two hundred eleven".