21304563061036 has 24 divisors (see below), whose sum is σ = 37368574019840. Its totient is φ = 10627853225472.

The previous prime is 21304563061021. The next prime is 21304563061039. The reversal of 21304563061036 is 63016036540312.

It is a super-2 number, since 2×21304563061036² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21304563061036.

It is not an unprimeable number, because it can be changed into a prime (21304563061039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131125 + ... + 6528883.

Almost surely, 2^{21304563061036} is an apocalyptic number.

It is an amenable number.

21304563061036 is a deficient number, since it is larger than the sum of its proper divisors (16064010958804).

21304563061036 is a wasteful number, since it uses less digits than its factorization.

21304563061036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399673 (or 6399671 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 21304563061036 in words is "twenty-one trillion, three hundred four billion, five hundred sixty-three million, sixty-one thousand, thirty-six".