20231232211 has 4 divisors (see below), whose sum is σ = 21421304712. Its totient is φ = 19041159712.

The previous prime is 20231232181. The next prime is 20231232221. The reversal of 20231232211 is 11223213202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11223213202 = 2 ⋅5611606601.

It is a cyclic number.

It is not a de Polignac number, because 20231232211 - 2⁵ = 20231232179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20231232221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595036225 + ... + 595036258.

It is an arithmetic number, because the mean of its divisors is an integer number (5355326178).

Almost surely, 2^20231232211 is an apocalyptic number.

20231232211 is a deficient number, since it is larger than the sum of its proper divisors (1190072501).

20231232211 is a wasteful number, since it uses less digits than its factorization.

20231232211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190072500.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20231232211 its reverse (11223213202), we get a palindrome (31454445413).

The spelling of 20231232211 in words is "twenty billion, two hundred thirty-one million, two hundred thirty-two thousand, two hundred eleven".