20144123412133 has 4 divisors (see below), whose sum is σ = 23021855328160. Its totient is φ = 17266391496108.

The previous prime is 20144123412121. The next prime is 20144123412191. The reversal of 20144123412133 is 33121432144102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20144123412133 - 2³³ = 20135533477541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20144123412095 and 20144123412104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144123422133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438865958003 + ... + 1438865958016.

It is an arithmetic number, because the mean of its divisors is an integer number (5755463832040).

Almost surely, 2^{20144123412133} is an apocalyptic number.

It is an amenable number.

20144123412133 is a deficient number, since it is larger than the sum of its proper divisors (2877731916027).

20144123412133 is an equidigital number, since it uses as much as digits as its factorization.

20144123412133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877731916026.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 20144123412133 its reverse (33121432144102), we get a palindrome (53265555556235).

The spelling of 20144123412133 in words is "twenty trillion, one hundred forty-four billion, one hundred twenty-three million, four hundred twelve thousand, one hundred thirty-three".