23121260313005 has 8 divisors (see below), whose sum is σ = 28269012609432. Its totient is φ = 18148008094528.

The previous prime is 23121260312959. The next prime is 23121260313077. The reversal of 23121260313005 is 50031306212132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6758159325316 + 16363100987689 = 2599646^2 + 4045133^2 .

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 23121260313005 - 2¹⁶ = 23121260247469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43625019194 + ... + 43625019723.

It is an arithmetic number, because the mean of its divisors is an integer number (3533626576179).

Almost surely, 2^{23121260313005} is an apocalyptic number.

It is an amenable number.

23121260313005 is a deficient number, since it is larger than the sum of its proper divisors (5147752296427).

23121260313005 is an equidigital number, since it uses as much as digits as its factorization.

23121260313005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87250038975.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 23121260313005 its reverse (50031306212132), we get a palindrome (73152566525137).

The spelling of 23121260313005 in words is "twenty-three trillion, one hundred twenty-one billion, two hundred sixty million, three hundred thirteen thousand, five".