23121444202423 has 32 divisors (see below), whose sum is σ = 28155852564480. Its totient is φ = 18546278400000.

The previous prime is 23121444202403. The next prime is 23121444202511. The reversal of 23121444202423 is 32420244412132.

It is a cyclic number.

It is not a de Polignac number, because 23121444202423 - 2⁵ = 23121444202391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121444202403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3792823 + ... + 7786423.

It is an arithmetic number, because the mean of its divisors is an integer number (879870392640).

Almost surely, 2^{23121444202423} is an apocalyptic number.

23121444202423 is a deficient number, since it is larger than the sum of its proper divisors (5034408362057).

23121444202423 is a wasteful number, since it uses less digits than its factorization.

23121444202423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994159.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 23121444202423 its reverse (32420244412132), we get a palindrome (55541688614555).

The spelling of 23121444202423 in words is "twenty-three trillion, one hundred twenty-one billion, four hundred forty-four million, two hundred two thousand, four hundred twenty-three".