20448121741 has 2 divisors, whose sum is σ = 20448121742. Its totient is φ = 20448121740.

The previous prime is 20448121721. The next prime is 20448121769. The reversal of 20448121741 is 14712184402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16289161641 + 4158960100 = 127629^2 + 64490^2 .

It is a cyclic number.

It is not a de Polignac number, because 20448121741 - 2¹³ = 20448113549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20448121697 and 20448121706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20448121711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10224060870 + 10224060871.

It is an arithmetic number, because the mean of its divisors is an integer number (10224060871).

Almost surely, 2^20448121741 is an apocalyptic number.

It is an amenable number.

20448121741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20448121741 is an equidigital number, since it uses as much as digits as its factorization.

20448121741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 34.

The spelling of 20448121741 in words is "twenty billion, four hundred forty-eight million, one hundred twenty-one thousand, seven hundred forty-one".