23520342321 has 12 divisors (see below), whose sum is σ = 38827231872. Its totient is φ = 13440195576.

The previous prime is 23520342311. The next prime is 23520342343. The reversal of 23520342321 is 12324302532.

23520342321 is a `hidden beast` number, since 2 + 35 + 203 + 423 + 2 + 1 = 666.

It is not a de Polignac number, because 23520342321 - 2⁶ = 23520342257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23520342311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186669321 + ... + 186669446.

It is an arithmetic number, because the mean of its divisors is an integer number (3235602656).

Almost surely, 2^23520342321 is an apocalyptic number.

23520342321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23520342321 is a deficient number, since it is larger than the sum of its proper divisors (15306889551).

23520342321 is a wasteful number, since it uses less digits than its factorization.

23520342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373338780 (or 373338777 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 23520342321 its reverse (12324302532), we get a palindrome (35844644853).

The spelling of 23520342321 in words is "twenty-three billion, five hundred twenty million, three hundred forty-two thousand, three hundred twenty-one".