21301300313012 has 24 divisors (see below), whose sum is σ = 38140779694080. Its totient is φ = 10404772431840.

The previous prime is 21301300312969. The next prime is 21301300313057. The reversal of 21301300313012 is 21031300310312.

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, 104616212 + ... + 104819627.

It is an arithmetic number, because the mean of its divisors is an integer number (1589199153920).

Almost surely, 2^{21301300313012} is an apocalyptic number.

It is an amenable number.

21301300313012 is a deficient number, since it is larger than the sum of its proper divisors (16839479381068).

21301300313012 is a wasteful number, since it uses less digits than its factorization.

21301300313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209436431 (or 209436429 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21301300313012 its reverse (21031300310312), we get a palindrome (42332600623324).

The spelling of 21301300313012 in words is "twenty-one trillion, three hundred one billion, three hundred million, three hundred thirteen thousand, twelve".