23420021306 has 8 divisors (see below), whose sum is σ = 38323671264. Its totient is φ = 10645464220.

The previous prime is 23420021227. The next prime is 23420021327. The reversal of 23420021306 is 60312002432.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532273190 + ... + 532273233.

It is an arithmetic number, because the mean of its divisors is an integer number (4790458908).

Almost surely, 2^23420021306 is an apocalyptic number.

23420021306 is a deficient number, since it is larger than the sum of its proper divisors (14903649958).

23420021306 is a wasteful number, since it uses less digits than its factorization.

23420021306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064546436.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23420021306 its reverse (60312002432), we get a palindrome (83732023738).

The spelling of 23420021306 in words is "twenty-three billion, four hundred twenty million, twenty-one thousand, three hundred six".