21141505503204 has 12 divisors (see below), whose sum is σ = 49330179507504. Its totient is φ = 7047168501064.

The previous prime is 21141505503187. The next prime is 21141505503211. The reversal of 21141505503204 is 40230550514112.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880896062622 + ... + 880896062645.

It is an arithmetic number, because the mean of its divisors is an integer number (4110848292292).

Almost surely, 2^{21141505503204} is an apocalyptic number.

It is an amenable number.

21141505503204 is an abundant number, since it is smaller than the sum of its proper divisors (28188674004300).

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

21141505503204 is a wasteful number, since it uses less digits than its factorization.

21141505503204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761792125274 (or 1761792125272 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 21141505503204 in words is "twenty-one trillion, one hundred forty-one billion, five hundred five million, five hundred three thousand, two hundred four".