20211233143 has 8 divisors (see below), whose sum is σ = 20340903600. Its totient is φ = 20081749248.

The previous prime is 20211233129. The next prime is 20211233149. The reversal of 20211233143 is 34133211202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211233143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211233149) 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, 174055 + ... + 265927.

It is an arithmetic number, because the mean of its divisors is an integer number (2542612950).

Almost surely, 2^20211233143 is an apocalyptic number.

20211233143 is a deficient number, since it is larger than the sum of its proper divisors (129670457).

20211233143 is a wasteful number, since it uses less digits than its factorization.

20211233143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93281.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20211233143 its reverse (34133211202), we get a palindrome (54344444345).

The spelling of 20211233143 in words is "twenty billion, two hundred eleven million, two hundred thirty-three thousand, one hundred forty-three".