21323330413 has 8 divisors (see below), whose sum is σ = 26584931520. Its totient is φ = 16615582080.

The previous prime is 21323330411. The next prime is 21323330419. The reversal of 21323330413 is 31403332312.

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 21323330413 - 2¹ = 21323330411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323330411) 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, 138463108 + ... + 138463261.

It is an arithmetic number, because the mean of its divisors is an integer number (3323116440).

Almost surely, 2^21323330413 is an apocalyptic number.

It is an amenable number.

21323330413 is a deficient number, since it is larger than the sum of its proper divisors (5261601107).

21323330413 is a wasteful number, since it uses less digits than its factorization.

21323330413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276926387.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 21323330413 its reverse (31403332312), we get a palindrome (52726662725).

The spelling of 21323330413 in words is "twenty-one billion, three hundred twenty-three million, three hundred thirty thousand, four hundred thirteen".