24323128513 has 2 divisors, whose sum is σ = 24323128514. Its totient is φ = 24323128512.

The previous prime is 24323128451. The next prime is 24323128549. The reversal of 24323128513 is 31582132342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21162102784 + 3161025729 = 145472^2 + 56223^2 .

It is a cyclic number.

It is not a de Polignac number, because 24323128513 - 2⁹ = 24323128001 is a prime.

It is a super-2 number, since 2×24323128513² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24323120513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12161564256 + 12161564257.

It is an arithmetic number, because the mean of its divisors is an integer number (12161564257).

Almost surely, 2^24323128513 is an apocalyptic number.

It is an amenable number.

24323128513 is a deficient number, since it is larger than the sum of its proper divisors (1).

24323128513 is an equidigital number, since it uses as much as digits as its factorization.

24323128513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 34.

The spelling of 24323128513 in words is "twenty-four billion, three hundred twenty-three million, one hundred twenty-eight thousand, five hundred thirteen".