21330240050345 has 16 divisors (see below), whose sum is σ = 25606741724928. Its totient is φ = 17057224315200.

The previous prime is 21330240050323. The next prime is 21330240050351. The reversal of 21330240050345 is 54305004203312.

It is not a de Polignac number, because 21330240050345 - 2⁸ = 21330240050089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131168027 + ... + 131330543.

It is an arithmetic number, because the mean of its divisors is an integer number (1600421357808).

Almost surely, 2^{21330240050345} is an apocalyptic number.

It is an amenable number.

21330240050345 is a deficient number, since it is larger than the sum of its proper divisors (4276501674583).

21330240050345 is a wasteful number, since it uses less digits than its factorization.

21330240050345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173080.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 21330240050345 its reverse (54305004203312), we get a palindrome (75635244253657).

The spelling of 21330240050345 in words is "twenty-one trillion, three hundred thirty billion, two hundred forty million, fifty thousand, three hundred forty-five".