21330240050344 has 32 divisors (see below), whose sum is σ = 42105803284800. Its totient is φ = 10102203048960.

The previous prime is 21330240050323. The next prime is 21330240050351. The reversal of 21330240050344 is 44305004203312.

It is a happy number.

It is a super-3 number, since 3×21330240050344³ (a number of 41 digits) contains 333 as substring.

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, 10109092 + ... + 12035539.

It is an arithmetic number, because the mean of its divisors is an integer number (1315806352650).

Almost surely, 2^{21330240050344} is an apocalyptic number.

It is an amenable number.

21330240050344 is a deficient number, since it is larger than the sum of its proper divisors (20775563234456).

21330240050344 is a wasteful number, since it uses less digits than its factorization.

21330240050344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22150993 (or 22150989 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 21330240050344 its reverse (44305004203312), we get a palindrome (65635244253656).

The spelling of 21330240050344 in words is "twenty-one trillion, three hundred thirty billion, two hundred forty million, fifty thousand, three hundred forty-four".