21112141340423 has 8 divisors (see below), whose sum is σ = 24906489323520. Its totient is φ = 17512375305240.

The previous prime is 21112141340417. The next prime is 21112141340429. The reversal of 21112141340423 is 32404314121112.

It is an interprime number because it is at equal distance from previous prime (21112141340417) and next prime (21112141340429).

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 21112141340423 - 2³⁴ = 21094961471239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112141340429) 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, 48645486743 + ... + 48645487176.

It is an arithmetic number, because the mean of its divisors is an integer number (3113311165440).

Almost surely, 2^{21112141340423} is an apocalyptic number.

21112141340423 is a deficient number, since it is larger than the sum of its proper divisors (3794347983097).

21112141340423 is an equidigital number, since it uses as much as digits as its factorization.

21112141340423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97290973957.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 21112141340423 its reverse (32404314121112), we get a palindrome (53516455461535).

The spelling of 21112141340423 in words is "twenty-one trillion, one hundred twelve billion, one hundred forty-one million, three hundred forty thousand, four hundred twenty-three".