21003313000012 has 12 divisors (see below), whose sum is σ = 42006626000080. Its totient is φ = 9001419857136.

The previous prime is 21003313000009. The next prime is 21003313000049. The reversal of 21003313000012 is 21000031330012.

21003313000012 is an admirable number.

It is a super-2 number, since 2×21003313000012² (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 21003313000012.

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, 375059160687 + ... + 375059160742.

Almost surely, 2^{21003313000012} is an apocalyptic number.

It is an amenable number.

21003313000012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21003313000012 is a wasteful number, since it uses less digits than its factorization.

21003313000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750118321440 (or 750118321438 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21003313000012 its reverse (21000031330012), we get a palindrome (42003344330024).

The spelling of 21003313000012 in words is "twenty-one trillion, three billion, three hundred thirteen million, twelve", and thus it is an aban number.