23505443320 has 32 divisors (see below), whose sum is σ = 52983982800. Its totient is φ = 9384979968.

The previous prime is 23505443293. The next prime is 23505443327. The reversal of 23505443320 is 2334450532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23505443327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515265 + ... + 559024.

Almost surely, 2^23505443320 is an apocalyptic number.

23505443320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23505443320 is an abundant number, since it is smaller than the sum of its proper divisors (29478539480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23505443320 is a wasteful number, since it uses less digits than its factorization.

23505443320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074847 (or 1074843 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 23505443320 its reverse (2334450532), we get a palindrome (25839893852).

The spelling of 23505443320 in words is "twenty-three billion, five hundred five million, four hundred forty-three thousand, three hundred twenty".