21364113700000 has 144 divisors (see below), whose sum is σ = 52660298275200. Its totient is φ = 8531355040000.

The previous prime is 21364113699967. The next prime is 21364113700009. The reversal of 21364113700000 is 731146312.

It is not an unprimeable number, because it can be changed into a prime (21364113700009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59721669 + ... + 60078331.

It is an arithmetic number, because the mean of its divisors is an integer number (365696515800).

Almost surely, 2^{21364113700000} is an apocalyptic number.

21364113700000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21364113700000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26330149137600).

21364113700000 is an abundant number, since it is smaller than the sum of its proper divisors (31296184575200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21364113700000 is an frugal number, since it uses more digits than its factorization.

21364113700000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357297 (or 357269 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 21364113700000 its reverse (731146312), we get a palindrome (21364844846312).

The spelling of 21364113700000 in words is "twenty-one trillion, three hundred sixty-four billion, one hundred thirteen million, seven hundred thousand".