20133144423 has 96 divisors (see below), whose sum is σ = 35178823680. Its totient is φ = 10855918080.

The previous prime is 20133144413. The next prime is 20133144467. The reversal of 20133144423 is 32444133102.

20133144423 is a `hidden beast` number, since 201 + 3 + 3 + 14 + 442 + 3 = 666.

It is not a de Polignac number, because 20133144423 - 2⁶ = 20133144359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133144413) 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 95 ways as a sum of consecutive naturals, for example, 12105690 + ... + 12107352.

It is an arithmetic number, because the mean of its divisors is an integer number (366446080).

Almost surely, 2^20133144423 is an apocalyptic number.

20133144423 is a deficient number, since it is larger than the sum of its proper divisors (15045679257).

20133144423 is a wasteful number, since it uses less digits than its factorization.

20133144423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869 (or 1866 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20133144423 its reverse (32444133102), we get a palindrome (52577277525).

The spelling of 20133144423 in words is "twenty billion, one hundred thirty-three million, one hundred forty-four thousand, four hundred twenty-three".