21053210234360 has 32 divisors (see below), whose sum is σ = 47370271923360. Its totient is φ = 8421186512256.

The previous prime is 21053210234351. The next prime is 21053210234401. The reversal of 21053210234360 is 6343201235012.

It is a super-3 number, since 3×21053210234360³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496637 + ... + 6507923.

It is an arithmetic number, because the mean of its divisors is an integer number (1480320997605).

Almost surely, 2^{21053210234360} is an apocalyptic number.

21053210234360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21053210234360 is an abundant number, since it is smaller than the sum of its proper divisors (26317061689000).

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

21053210234360 is a wasteful number, since it uses less digits than its factorization.

21053210234360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6098855 (or 6098851 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 21053210234360 its reverse (6343201235012), we get a palindrome (27396411469372).

The spelling of 21053210234360 in words is "twenty-one trillion, fifty-three billion, two hundred ten million, two hundred thirty-four thousand, three hundred sixty".