20211423233 has 8 divisors (see below), whose sum is σ = 21411072000. Its totient is φ = 19012968000.

The previous prime is 20211423217. The next prime is 20211423251. The reversal of 20211423233 is 33232411202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20211423233 - 2⁴ = 20211423217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20211423199 and 20211423208.

It is not an unprimeable number, because it can be changed into a prime (20211423433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263393 + ... + 331358.

It is an arithmetic number, because the mean of its divisors is an integer number (2676384000).

Almost surely, 2^20211423233 is an apocalyptic number.

It is an amenable number.

20211423233 is a deficient number, since it is larger than the sum of its proper divisors (1199648767).

20211423233 is a wasteful number, since it uses less digits than its factorization.

20211423233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596767.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20211423233 its reverse (33232411202), we get a palindrome (53443834435).

The spelling of 20211423233 in words is "twenty billion, two hundred eleven million, four hundred twenty-three thousand, two hundred thirty-three".