23009359521 has 8 divisors (see below), whose sum is σ = 30682805824. Its totient is φ = 15337743120.

The previous prime is 23009359487. The next prime is 23009359609. The reversal of 23009359521 is 12595390032.

It is a happy number.

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

It is not a de Polignac number, because 23009359521 - 2¹⁰ = 23009358497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23009359521.

It is not an unprimeable number, because it can be changed into a prime (23009359921) 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, 427861 + ... + 478626.

It is an arithmetic number, because the mean of its divisors is an integer number (3835350728).

Almost surely, 2^23009359521 is an apocalyptic number.

It is an amenable number.

23009359521 is a deficient number, since it is larger than the sum of its proper divisors (7673446303).

23009359521 is an equidigital number, since it uses as much as digits as its factorization.

23009359521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914951.

The product of its (nonzero) digits is 72900, while the sum is 39.

The spelling of 23009359521 in words is "twenty-three billion, nine million, three hundred fifty-nine thousand, five hundred twenty-one".