21140534041338 has 8 divisors (see below), whose sum is σ = 42281068082688. Its totient is φ = 7046844680444.

The previous prime is 21140534041313. The next prime is 21140534041339. The reversal of 21140534041338 is 83314043504112.

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

21140534041338 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21140534041296 and 21140534041305.

It is not an unprimeable number, because it can be changed into a prime (21140534041339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1761711170106 + ... + 1761711170117.

It is an arithmetic number, because the mean of its divisors is an integer number (5285133510336).

Almost surely, 2^{21140534041338} is an apocalyptic number.

21140534041338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21140534041338 is a wasteful number, since it uses less digits than its factorization.

21140534041338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523422340228.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 21140534041338 in words is "twenty-one trillion, one hundred forty billion, five hundred thirty-four million, forty-one thousand, three hundred thirty-eight".