23387321056 has 48 divisors (see below), whose sum is σ = 53184282480. Its totient is φ = 10005268480.

The previous prime is 23387321051. The next prime is 23387321129. The reversal of 23387321056 is 65012378332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23387321051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1948171 + ... + 1960138.

It is an arithmetic number, because the mean of its divisors is an integer number (1108005885).

Almost surely, 2^23387321056 is an apocalyptic number.

It is an amenable number.

23387321056 is an abundant number, since it is smaller than the sum of its proper divisors (29796961424).

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

23387321056 is a wasteful number, since it uses less digits than its factorization.

23387321056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908347 (or 3908339 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

Adding to 23387321056 its reverse (65012378332), we get a palindrome (88399699388).

It can be divided in two parts, 23387 and 321056, that added together give a palindrome (344443).

The spelling of 23387321056 in words is "twenty-three billion, three hundred eighty-seven million, three hundred twenty-one thousand, fifty-six".