20013144134334 has 16 divisors (see below), whose sum is σ = 43105233520272. Its totient is φ = 6157890502848.

The previous prime is 20013144134299. The next prime is 20013144134351. The reversal of 20013144134334 is 43343144131002.

It is a super-4 number, since 4×20013144134334⁴ (a number of 54 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20013144134295 and 20013144134304.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 128289385399 + ... + 128289385554.

It is an arithmetic number, because the mean of its divisors is an integer number (2694077095017).

Almost surely, 2^{20013144134334} is an apocalyptic number.

20013144134334 is an abundant number, since it is smaller than the sum of its proper divisors (23092089385938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20013144134334 is a wasteful number, since it uses less digits than its factorization.

20013144134334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256578770971.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 20013144134334 its reverse (43343144131002), we get a palindrome (63356288265336).

The spelling of 20013144134334 in words is "twenty trillion, thirteen billion, one hundred forty-four million, one hundred thirty-four thousand, three hundred thirty-four".