21343261006 has 8 divisors (see below), whose sum is σ = 32308606440. Its totient is φ = 10573725528.

The previous prime is 21343260947. The next prime is 21343261073. The reversal of 21343261006 is 60016234312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48952216 + ... + 48952651.

It is an arithmetic number, because the mean of its divisors is an integer number (4038575805).

Almost surely, 2^21343261006 is an apocalyptic number.

21343261006 is a deficient number, since it is larger than the sum of its proper divisors (10965345434).

21343261006 is a wasteful number, since it uses less digits than its factorization.

21343261006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97904978.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 21343261006 its reverse (60016234312), we get a palindrome (81359495318).

The spelling of 21343261006 in words is "twenty-one billion, three hundred forty-three million, two hundred sixty-one thousand, six".