21301450113344 has 56 divisors (see below), whose sum is σ = 44108765386560. Its totient is φ = 10187448786944.

The previous prime is 21301450113343. The next prime is 21301450113389. The reversal of 21301450113344 is 44331105410312.

It is a super-2 number, since 2×21301450113344² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 21301450113344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301450113343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96643007 + ... + 96863169.

It is an arithmetic number, because the mean of its divisors is an integer number (787656524760).

Almost surely, 2^{21301450113344} is an apocalyptic number.

It is an amenable number.

21301450113344 is an abundant number, since it is smaller than the sum of its proper divisors (22807315273216).

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

21301450113344 is a wasteful number, since it uses less digits than its factorization.

21301450113344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285927 (or 285917 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 21301450113344 its reverse (44331105410312), we get a palindrome (65632555523656).

The spelling of 21301450113344 in words is "twenty-one trillion, three hundred one billion, four hundred fifty million, one hundred thirteen thousand, three hundred forty-four".