21113433302012 has 6 divisors (see below), whose sum is σ = 36948508278528. Its totient is φ = 10556716651004.

The previous prime is 21113433302009. The next prime is 21113433302041. The reversal of 21113433302012 is 21020333431112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639179162748 + ... + 2639179162755.

It is an arithmetic number, because the mean of its divisors is an integer number (6158084713088).

Almost surely, 2^{21113433302012} is an apocalyptic number.

It is an amenable number.

21113433302012 is a deficient number, since it is larger than the sum of its proper divisors (15835074976516).

21113433302012 is a wasteful number, since it uses less digits than its factorization.

21113433302012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5278358325507 (or 5278358325505 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 21113433302012 its reverse (21020333431112), we get a palindrome (42133766733124).

The spelling of 21113433302012 in words is "twenty-one trillion, one hundred thirteen billion, four hundred thirty-three million, three hundred two thousand, twelve".