21100323320312 has 32 divisors (see below), whose sum is σ = 41747197530000. Its totient is φ = 9970452580608.

The previous prime is 21100323320299. The next prime is 21100323320333. The reversal of 21100323320312 is 21302332300112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169641887 + ... + 169766222.

Almost surely, 2^{21100323320312} is an apocalyptic number.

It is an amenable number.

21100323320312 is a deficient number, since it is larger than the sum of its proper divisors (20646874209688).

21100323320312 is a wasteful number, since it uses less digits than its factorization.

21100323320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339408543 (or 339408539 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21100323320312 its reverse (21302332300112), we get a palindrome (42402655620424).

The spelling of 21100323320312 in words is "twenty-one trillion, one hundred billion, three hundred twenty-three million, three hundred twenty thousand, three hundred twelve".