106488243781 has 2 divisors, whose sum is σ = 106488243782. Its totient is φ = 106488243780.

The previous prime is 106488243731. The next prime is 106488243863. The reversal of 106488243781 is 187342884601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55597395681 + 50890848100 = 235791^2 + 225590^2 .

It is a cyclic number.

It is not a de Polignac number, because 106488243781 - 2²¹ = 106486146629 is a prime.

It is a super-2 number, since 2×106488243781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106488243721) 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, 53244121890 + 53244121891.

It is an arithmetic number, because the mean of its divisors is an integer number (53244121891).

Almost surely, 2^106488243781 is an apocalyptic number.

It is an amenable number.

106488243781 is a deficient number, since it is larger than the sum of its proper divisors (1).

106488243781 is an equidigital number, since it uses as much as digits as its factorization.

106488243781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 106488243781 in words is "one hundred six billion, four hundred eighty-eight million, two hundred forty-three thousand, seven hundred eighty-one".