21013233120112 has 10 divisors (see below), whose sum is σ = 40713139170248. Its totient is φ = 10506616560048.

The previous prime is 21013233120079. The next prime is 21013233120127. The reversal of 21013233120112 is 21102133231012.

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, 656663534988 + ... + 656663535019.

Almost surely, 2^{21013233120112} is an apocalyptic number.

It is an amenable number.

21013233120112 is a deficient number, since it is larger than the sum of its proper divisors (19699906050136).

21013233120112 is a wasteful number, since it uses less digits than its factorization.

21013233120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313327070015 (or 1313327070009 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21013233120112 its reverse (21102133231012), we get a palindrome (42115366351124).

The spelling of 21013233120112 in words is "twenty-one trillion, thirteen billion, two hundred thirty-three million, one hundred twenty thousand, one hundred twelve".