23140432305 has 48 divisors (see below), whose sum is σ = 40446806400. Its totient is φ = 12238159104.

The previous prime is 23140432297. The next prime is 23140432379. The reversal of 23140432305 is 50323404132.

23140432305 is a `hidden beast` number, since 2 + 314 + 0 + 43 + 2 + 305 = 666.

It is not a de Polignac number, because 23140432305 - 2³ = 23140432297 is a prime.

It is a super-2 number, since 2×23140432305² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 8623494 + ... + 8626176.

It is an arithmetic number, because the mean of its divisors is an integer number (842641800).

Almost surely, 2^23140432305 is an apocalyptic number.

It is an amenable number.

23140432305 is a deficient number, since it is larger than the sum of its proper divisors (17306374095).

23140432305 is a wasteful number, since it uses less digits than its factorization.

23140432305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230 (or 4227 counting only the distinct ones).

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

Adding to 23140432305 its reverse (50323404132), we get a palindrome (73463836437).

The spelling of 23140432305 in words is "twenty-three billion, one hundred forty million, four hundred thirty-two thousand, three hundred five".