24123412021 has 2 divisors, whose sum is σ = 24123412022. Its totient is φ = 24123412020.

The previous prime is 24123412007. The next prime is 24123412039. The reversal of 24123412021 is 12021432142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23191025796 + 932386225 = 152286^2 + 30535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24123412021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24123411983 and 24123412001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24123412421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12061706010 + 12061706011.

It is an arithmetic number, because the mean of its divisors is an integer number (12061706011).

Almost surely, 2^24123412021 is an apocalyptic number.

It is an amenable number.

24123412021 is a deficient number, since it is larger than the sum of its proper divisors (1).

24123412021 is an equidigital number, since it uses as much as digits as its factorization.

24123412021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 24123412021 its reverse (12021432142), we get a palindrome (36144844163).

The spelling of 24123412021 in words is "twenty-four billion, one hundred twenty-three million, four hundred twelve thousand, twenty-one".