1090213381709 has 2 divisors, whose sum is σ = 1090213381710. Its totient is φ = 1090213381708.

The previous prime is 1090213381669. The next prime is 1090213381913. The reversal of 1090213381709 is 9071833120901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1070817248809 + 19396132900 = 1034803^2 + 139270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1090213381709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1090213381709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1090213681709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545106690854 + 545106690855.

It is an arithmetic number, because the mean of its divisors is an integer number (545106690855).

Almost surely, 2^{1090213381709} is an apocalyptic number.

It is an amenable number.

1090213381709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090213381709 is an equidigital number, since it uses as much as digits as its factorization.

1090213381709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 1090213381709 in words is "one trillion, ninety billion, two hundred thirteen million, three hundred eighty-one thousand, seven hundred nine".