23031202211 has 4 divisors (see below), whose sum is σ = 23036492592. Its totient is φ = 23025911832.

The previous prime is 23031202189. The next prime is 23031202277. The reversal of 23031202211 is 11220213032.

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 23031202211 - 2²² = 23027007907 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 23031202211.

It is not an unprimeable number, because it can be changed into a prime (23031202291) 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, 2638655 + ... + 2647368.

It is an arithmetic number, because the mean of its divisors is an integer number (5759123148).

Almost surely, 2^23031202211 is an apocalyptic number.

23031202211 is a deficient number, since it is larger than the sum of its proper divisors (5290381).

23031202211 is an equidigital number, since it uses as much as digits as its factorization.

23031202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5290380.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23031202211 its reverse (11220213032), we get a palindrome (34251415243).

The spelling of 23031202211 in words is "twenty-three billion, thirty-one million, two hundred two thousand, two hundred eleven".