23240121320021 has 8 divisors (see below), whose sum is σ = 23618533357440. Its totient is φ = 22864052391712.

The previous prime is 23240121319967. The next prime is 23240121320023. The reversal of 23240121320021 is 12002312104232.

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

It is a cyclic number.

It is not a de Polignac number, because 23240121320021 - 2²² = 23240117125717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23240121320023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585757280 + ... + 585796953.

It is an arithmetic number, because the mean of its divisors is an integer number (2952316669680).

Almost surely, 2^{23240121320021} is an apocalyptic number.

It is an amenable number.

23240121320021 is a deficient number, since it is larger than the sum of its proper divisors (378412037419).

23240121320021 is a wasteful number, since it uses less digits than its factorization.

23240121320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171554555.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 23240121320021 its reverse (12002312104232), we get a palindrome (35242433424253).

The spelling of 23240121320021 in words is "twenty-three trillion, two hundred forty billion, one hundred twenty-one million, three hundred twenty thousand, twenty-one".