21003332240334 has 32 divisors (see below), whose sum is σ = 42200426286720. Its totient is φ = 6968890426400.

The previous prime is 21003332240273. The next prime is 21003332240351. The reversal of 21003332240334 is 43304223330012.

It is a super-2 number, since 2×21003332240334² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 8017812 + ... + 10309799.

It is an arithmetic number, because the mean of its divisors is an integer number (1318763321460).

Almost surely, 2^{21003332240334} is an apocalyptic number.

21003332240334 is an abundant number, since it is smaller than the sum of its proper divisors (21197094046386).

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

21003332240334 is a wasteful number, since it uses less digits than its factorization.

21003332240334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18328496.

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 21003332240334 its reverse (43304223330012), we get a palindrome (64307555570346).

The spelling of 21003332240334 in words is "twenty-one trillion, three billion, three hundred thirty-two million, two hundred forty thousand, three hundred thirty-four".