21034303333344 has 144 divisors (see below), whose sum is σ = 68364239055840. Its totient is φ = 6009558912000.

The previous prime is 21034303333339. The next prime is 21034303333361. The reversal of 21034303333344 is 44333330343012.

21034303333344 is a `hidden beast` number, since 2 + 1 + 0 + 3 + 4 + 303 + 3 + 3 + 3 + 344 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 21034303333299 and 21034303333308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53229162 + ... + 53622870.

It is an arithmetic number, because the mean of its divisors is an integer number (474751660110).

Almost surely, 2^{21034303333344} is an apocalyptic number.

21034303333344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21034303333344 is an abundant number, since it is smaller than the sum of its proper divisors (47329935722496).

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

21034303333344 is a wasteful number, since it uses less digits than its factorization.

21034303333344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420233 (or 420222 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 36.

Adding to 21034303333344 its reverse (44333330343012), we get a palindrome (65367633676356).

The spelling of 21034303333344 in words is "twenty-one trillion, thirty-four billion, three hundred three million, three hundred thirty-three thousand, three hundred forty-four".