23105430540 has 36 divisors (see below), whose sum is σ = 70086473184. Its totient is φ = 6161448096.

The previous prime is 23105430527. The next prime is 23105430547. The reversal of 23105430540 is 4503450132.

23105430540 is a `hidden beast` number, since 2 + 310 + 5 + 4 + 305 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (23105430547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64181572 + ... + 64181931.

Almost surely, 2^23105430540 is an apocalyptic number.

23105430540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23105430540 is an abundant number, since it is smaller than the sum of its proper divisors (46981042644).

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

23105430540 is a wasteful number, since it uses less digits than its factorization.

23105430540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128363518 (or 128363513 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 23105430540 its reverse (4503450132), we get a palindrome (27608880672).

The spelling of 23105430540 in words is "twenty-three billion, one hundred five million, four hundred thirty thousand, five hundred forty".