21034020011034 has 16 divisors (see below), whose sum is σ = 42168441077280. Its totient is φ = 6994606494480.

The previous prime is 21034020011033. The next prime is 21034020011047. The reversal of 21034020011034 is 43011002043012.

It is a self number, because there is not a number n which added to its sum of digits gives 21034020011034.

It is not an unprimeable number, because it can be changed into a prime (21034020011033) 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, 4183374577 + ... + 4183379604.

It is an arithmetic number, because the mean of its divisors is an integer number (2635527567330).

Almost surely, 2^{21034020011034} is an apocalyptic number.

21034020011034 is an abundant number, since it is smaller than the sum of its proper divisors (21134421066246).

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

21034020011034 is a wasteful number, since it uses less digits than its factorization.

21034020011034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8366754605.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21034020011034 its reverse (43011002043012), we get a palindrome (64045022054046).

The spelling of 21034020011034 in words is "twenty-one trillion, thirty-four billion, twenty million, eleven thousand, thirty-four".