24142321122421 has 4 divisors (see below), whose sum is σ = 25562457659052. Its totient is φ = 22722184585792.

The previous prime is 24142321122401. The next prime is 24142321122443. The reversal of 24142321122421 is 12422112324142.

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 13217405580625 + 10924915541796 = 3635575^2 + 3305286^2 .

It is a cyclic number.

It is not a de Polignac number, because 24142321122421 - 2⁵ = 24142321122389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24142321122401) 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, 710068268290 + ... + 710068268323.

It is an arithmetic number, because the mean of its divisors is an integer number (6390614414763).

Almost surely, 2^{24142321122421} is an apocalyptic number.

It is an amenable number.

24142321122421 is a deficient number, since it is larger than the sum of its proper divisors (1420136536631).

24142321122421 is a wasteful number, since it uses less digits than its factorization.

24142321122421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420136536630.

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

Adding to 24142321122421 its reverse (12422112324142), we get a palindrome (36564433446563).

The spelling of 24142321122421 in words is "twenty-four trillion, one hundred forty-two billion, three hundred twenty-one million, one hundred twenty-two thousand, four hundred twenty-one".