21304034041043 has 8 divisors (see below), whose sum is σ = 23285235829968. Its totient is φ = 19371750814944.

The previous prime is 21304034041039. The next prime is 21304034041057. The reversal of 21304034041043 is 34014043040312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21304034041043 - 2² = 21304034041039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21304034040997 and 21304034041015.

It is not an unprimeable number, because it can be changed into a prime (21304034041093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12229639796 + ... + 12229641537.

It is an arithmetic number, because the mean of its divisors is an integer number (2910654478746).

Almost surely, 2^{21304034041043} is an apocalyptic number.

21304034041043 is a deficient number, since it is larger than the sum of its proper divisors (1981201788925).

21304034041043 is a wasteful number, since it uses less digits than its factorization.

21304034041043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24459281413.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 21304034041043 its reverse (34014043040312), we get a palindrome (55318077081355).

The spelling of 21304034041043 in words is "twenty-one trillion, three hundred four billion, thirty-four million, forty-one thousand, forty-three".