21113515504112 has 10 divisors (see below), whose sum is σ = 40907436289248. Its totient is φ = 10556757752048.

The previous prime is 21113515504111. The next prime is 21113515504117. The reversal of 21113515504112 is 21140551531112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113515504111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659797359488 + ... + 659797359519.

Almost surely, 2^{21113515504112} is an apocalyptic number.

It is an amenable number.

21113515504112 is a deficient number, since it is larger than the sum of its proper divisors (19793920785136).

21113515504112 is a wasteful number, since it uses less digits than its factorization.

21113515504112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319594719015 (or 1319594719009 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 32.

The spelling of 21113515504112 in words is "twenty-one trillion, one hundred thirteen billion, five hundred fifteen million, five hundred four thousand, one hundred twelve".