23240253021 has 8 divisors (see below), whose sum is σ = 31056019200. Its totient is φ = 15458994432.

The previous prime is 23240252983. The next prime is 23240253041. The reversal of 23240253021 is 12035204232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23240253021 - 2¹³ = 23240244829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23240252982 and 23240253000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23240253041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8625325 + ... + 8628018.

It is an arithmetic number, because the mean of its divisors is an integer number (3882002400).

Almost surely, 2^23240253021 is an apocalyptic number.

It is an amenable number.

23240253021 is a deficient number, since it is larger than the sum of its proper divisors (7815766179).

23240253021 is a wasteful number, since it uses less digits than its factorization.

23240253021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17253795.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 23240253021 its reverse (12035204232), we get a palindrome (35275457253).

The spelling of 23240253021 in words is "twenty-three billion, two hundred forty million, two hundred fifty-three thousand, twenty-one".