23243660281 has 4 divisors (see below), whose sum is σ = 23263510864. Its totient is φ = 23223809700.

The previous prime is 23243660267. The next prime is 23243660311. The reversal of 23243660281 is 18206634232.

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 a cyclic number.

It is not a de Polignac number, because 23243660281 - 2¹⁷ = 23243529209 is a prime.

It is a super-2 number, since 2×23243660281² (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 23243660281.

It is not an unprimeable number, because it can be changed into a prime (23243660081) 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, 9923535 + ... + 9925876.

It is an arithmetic number, because the mean of its divisors is an integer number (5815877716).

Almost surely, 2^23243660281 is an apocalyptic number.

It is an amenable number.

23243660281 is a deficient number, since it is larger than the sum of its proper divisors (19850583).

23243660281 is a wasteful number, since it uses less digits than its factorization.

23243660281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19850582.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 23243660281 in words is "twenty-three billion, two hundred forty-three million, six hundred sixty thousand, two hundred eighty-one".