23513050240 has 128 divisors (see below), whose sum is σ = 60141240000. Its totient is φ = 8763863040.

The previous prime is 23513050237. The next prime is 23513050277. The reversal of 23513050240 is 4205031532.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 725911 + ... + 757609.

Almost surely, 2^23513050240 is an apocalyptic number.

23513050240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23513050240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30070620000).

23513050240 is an abundant number, since it is smaller than the sum of its proper divisors (36628189760).

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

23513050240 is a wasteful number, since it uses less digits than its factorization.

23513050240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31798 (or 31786 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 23513050240 its reverse (4205031532), we get a palindrome (27718081772).

The spelling of 23513050240 in words is "twenty-three billion, five hundred thirteen million, fifty thousand, two hundred forty".