20024430634249 has 2 divisors, whose sum is σ = 20024430634250. Its totient is φ = 20024430634248.

The previous prime is 20024430634163. The next prime is 20024430634253. The reversal of 20024430634249 is 94243603442002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12801855009024 + 7222575625225 = 3577968^2 + 2687485^2 .

It is a cyclic number.

It is not a de Polignac number, because 20024430634249 - 2⁷ = 20024430634121 is a prime.

It is not a weakly prime, because it can be changed into another prime (20024430634849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012215317124 + 10012215317125.

It is an arithmetic number, because the mean of its divisors is an integer number (10012215317125).

Almost surely, 2^{20024430634249} is an apocalyptic number.

It is an amenable number.

20024430634249 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024430634249 is an equidigital number, since it uses as much as digits as its factorization.

20024430634249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 43.

The spelling of 20024430634249 in words is "twenty trillion, twenty-four billion, four hundred thirty million, six hundred thirty-four thousand, two hundred forty-nine".