23144403220504 has 16 divisors (see below), whose sum is σ = 43396071512400. Its totient is φ = 11572117483872.

The previous prime is 23144403220489. The next prime is 23144403220597. The reversal of 23144403220504 is 40502230444132.

It is a self number, because there is not a number n which added to its sum of digits gives 23144403220504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9338812 + ... + 11554315.

It is an arithmetic number, because the mean of its divisors is an integer number (2712254469525).

Almost surely, 2^{23144403220504} is an apocalyptic number.

It is an amenable number.

23144403220504 is a deficient number, since it is larger than the sum of its proper divisors (20251668291896).

23144403220504 is a wasteful number, since it uses less digits than its factorization.

23144403220504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21031602 (or 21031598 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 23144403220504 its reverse (40502230444132), we get a palindrome (63646633664636).

The spelling of 23144403220504 in words is "twenty-three trillion, one hundred forty-four billion, four hundred three million, two hundred twenty thousand, five hundred four".