23819308117 has 4 divisors (see below), whose sum is σ = 25984699776. Its totient is φ = 21653916460.

The previous prime is 23819308099. The next prime is 23819308127. The reversal of 23819308117 is 71180391832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23819308117 - 2¹⁹ = 23818783829 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 (23819308127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082695813 + ... + 1082695834.

It is an arithmetic number, because the mean of its divisors is an integer number (6496174944).

Almost surely, 2^23819308117 is an apocalyptic number.

It is an amenable number.

23819308117 is a deficient number, since it is larger than the sum of its proper divisors (2165391659).

23819308117 is a wasteful number, since it uses less digits than its factorization.

23819308117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165391658.

The product of its (nonzero) digits is 72576, while the sum is 43.

Adding to 23819308117 its reverse (71180391832), we get a palindrome (94999699949).

The spelling of 23819308117 in words is "twenty-three billion, eight hundred nineteen million, three hundred eight thousand, one hundred seventeen".