23105543131 has 16 divisors (see below), whose sum is σ = 26206387200. Its totient is φ = 20181175200.

The previous prime is 23105543099. The next prime is 23105543141. The reversal of 23105543131 is 13134550132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23105543131 - 2⁵ = 23105543099 is a prime.

It is a super-2 number, since 2×23105543131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23105543131.

It is not an unprimeable number, because it can be changed into a prime (23105543141) 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 15 ways as a sum of consecutive naturals, for example, 196336 + ... + 291133.

It is an arithmetic number, because the mean of its divisors is an integer number (1637899200).

Almost surely, 2^23105543131 is an apocalyptic number.

23105543131 is a deficient number, since it is larger than the sum of its proper divisors (3100844069).

23105543131 is a wasteful number, since it uses less digits than its factorization.

23105543131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487650.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 23105543131 in words is "twenty-three billion, one hundred five million, five hundred forty-three thousand, one hundred thirty-one".