23124144240121 has 4 divisors (see below), whose sum is σ = 23124486699892. Its totient is φ = 23123801780352.

The previous prime is 23124144240107. The next prime is 23124144240137. The reversal of 23124144240121 is 12104244142132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 408806784400 + 22715337455721 = 639380^2 + 4766061^2 .

It is a cyclic number.

It is not a de Polignac number, because 23124144240121 - 2⁷ = 23124144239993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23124144240151) 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, 171128580 + ... + 171263653.

It is an arithmetic number, because the mean of its divisors is an integer number (5781121674973).

Almost surely, 2^{23124144240121} is an apocalyptic number.

It is an amenable number.

23124144240121 is a deficient number, since it is larger than the sum of its proper divisors (342459771).

23124144240121 is an equidigital number, since it uses as much as digits as its factorization.

23124144240121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342459770.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 23124144240121 its reverse (12104244142132), we get a palindrome (35228388382253).

The spelling of 23124144240121 in words is "twenty-three trillion, one hundred twenty-four billion, one hundred forty-four million, two hundred forty thousand, one hundred twenty-one".