20143333320423 has 16 divisors (see below), whose sum is σ = 28872862993920. Its totient is φ = 12451422162816.

The previous prime is 20143333320353. The next prime is 20143333320431. The reversal of 20143333320423 is 32402333334102.

It is not a de Polignac number, because 20143333320423 - 2⁹ = 20143333319911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20143333324423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3759484690 + ... + 3759490047.

It is an arithmetic number, because the mean of its divisors is an integer number (1804553937120).

Almost surely, 2^{20143333320423} is an apocalyptic number.

20143333320423 is a deficient number, since it is larger than the sum of its proper divisors (8729529673497).

20143333320423 is a wasteful number, since it uses less digits than its factorization.

20143333320423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7518974806.

The product of its (nonzero) digits is 93312, while the sum is 33.

Adding to 20143333320423 its reverse (32402333334102), we get a palindrome (52545666654525).

The spelling of 20143333320423 in words is "twenty trillion, one hundred forty-three billion, three hundred thirty-three million, three hundred twenty thousand, four hundred twenty-three".