21033510341 has 16 divisors (see below), whose sum is σ = 21357483840. Its totient is φ = 20712332160.

The previous prime is 21033510331. The next prime is 21033510391. The reversal of 21033510341 is 14301533012.

It is a de Polignac number, because none of the positive numbers 2^k-21033510341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033510331) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17113715 + ... + 17114943.

It is an arithmetic number, because the mean of its divisors is an integer number (1334842740).

Almost surely, 2^21033510341 is an apocalyptic number.

It is an amenable number.

21033510341 is a deficient number, since it is larger than the sum of its proper divisors (323973499).

21033510341 is a wasteful number, since it uses less digits than its factorization.

21033510341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164.

The product of its (nonzero) digits is 1080, while the sum is 23.

The spelling of 21033510341 in words is "twenty-one billion, thirty-three million, five hundred ten thousand, three hundred forty-one".