21144002000341 has 4 divisors (see below), whose sum is σ = 23066184000384. Its totient is φ = 19221820000300.

The previous prime is 21144002000309. The next prime is 21144002000347. The reversal of 21144002000341 is 14300020044112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21144002000341 - 2⁵ = 21144002000309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21144002000347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961091000005 + ... + 961091000026.

It is an arithmetic number, because the mean of its divisors is an integer number (5766546000096).

Almost surely, 2^{21144002000341} is an apocalyptic number.

It is an amenable number.

21144002000341 is a deficient number, since it is larger than the sum of its proper divisors (1922182000043).

21144002000341 is a wasteful number, since it uses less digits than its factorization.

21144002000341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922182000042.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21144002000341 its reverse (14300020044112), we get a palindrome (35444022044453).

The spelling of 21144002000341 in words is "twenty-one trillion, one hundred forty-four billion, two million, three hundred forty-one", and thus it is an aban number.