21034020011010 has 96 divisors (see below), whose sum is σ = 54517449349440. Its totient is φ = 5190279486336.

The previous prime is 21034020010981. The next prime is 21034020011033. The reversal of 21034020011010 is 1011002043012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22118025 + ... + 23049404.

It is an arithmetic number, because the mean of its divisors is an integer number (567890097390).

Almost surely, 2^{21034020011010} is an apocalyptic number.

21034020011010 is an abundant number, since it is smaller than the sum of its proper divisors (33483429338430).

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

21034020011010 is a wasteful number, since it uses less digits than its factorization.

21034020011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45167520 (or 45167501 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21034020011010 its reverse (1011002043012), we get a palindrome (22045022054022).

The spelling of 21034020011010 in words is "twenty-one trillion, thirty-four billion, twenty million, eleven thousand, ten".