20124421143423 has 8 divisors (see below), whose sum is σ = 26832582587136. Its totient is φ = 13416270231000.

The previous prime is 20124421143397. The next prime is 20124421143427. The reversal of 20124421143423 is 32434112442102.

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

It is not a de Polignac number, because 20124421143423 - 2³² = 20120126176127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124421143427) 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, 4927008 + ... + 8032698.

It is an arithmetic number, because the mean of its divisors is an integer number (3354072823392).

Almost surely, 2^{20124421143423} is an apocalyptic number.

20124421143423 is a deficient number, since it is larger than the sum of its proper divisors (6708161443713).

20124421143423 is a wasteful number, since it uses less digits than its factorization.

20124421143423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265645.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 20124421143423 its reverse (32434112442102), we get a palindrome (52558533585525).

The spelling of 20124421143423 in words is "twenty trillion, one hundred twenty-four billion, four hundred twenty-one million, one hundred forty-three thousand, four hundred twenty-three".