21101300201312 has 24 divisors (see below), whose sum is σ = 41544462601656. Its totient is φ = 10550325572352.

The previous prime is 21101300201287. The next prime is 21101300201327. The reversal of 21101300201312 is 21310200310112.

It is a congruent number.

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, 9083213 + ... + 11167244.

It is an arithmetic number, because the mean of its divisors is an integer number (1731019275069).

Almost surely, 2^{21101300201312} is an apocalyptic number.

It is an amenable number.

21101300201312 is a deficient number, since it is larger than the sum of its proper divisors (20443162400344).

21101300201312 is a wasteful number, since it uses less digits than its factorization.

21101300201312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20283030 (or 20283022 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21101300201312 its reverse (21310200310112), we get a palindrome (42411500511424).

The spelling of 21101300201312 in words is "twenty-one trillion, one hundred one billion, three hundred million, two hundred one thousand, three hundred twelve".