23043405864961 has 4 divisors (see below), whose sum is σ = 23043875411524. Its totient is φ = 23042936318400.

The previous prime is 23043405864923. The next prime is 23043405864977. The reversal of 23043405864961 is 16946850434032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14956349614336 + 8087056250625 = 3867344^2 + 2843775^2 .

It is a cyclic number.

It is not a de Polignac number, because 23043405864961 - 2¹⁹ = 23043405340673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23043405868961) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 234699660 + ... + 234797821.

It is an arithmetic number, because the mean of its divisors is an integer number (5760968852881).

Almost surely, 2^{23043405864961} is an apocalyptic number.

It is an amenable number.

23043405864961 is a deficient number, since it is larger than the sum of its proper divisors (469546563).

23043405864961 is an equidigital number, since it uses as much as digits as its factorization.

23043405864961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469546562.

The product of its (nonzero) digits is 14929920, while the sum is 55.

The spelling of 23043405864961 in words is "twenty-three trillion, forty-three billion, four hundred five million, eight hundred sixty-four thousand, nine hundred sixty-one".