1109381513 has 2 divisors, whose sum is σ = 1109381514. Its totient is φ = 1109381512.

The previous prime is 1109381509. The next prime is 1109381521. The reversal of 1109381513 is 3151839011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 917060089 + 192321424 = 30283^2 + 13868^2 .

It is an emirp because it is prime and its reverse (3151839011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1109381513 - 2² = 1109381509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1109381513.

It is not a weakly prime, because it can be changed into another prime (1108381513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554690756 + 554690757.

It is an arithmetic number, because the mean of its divisors is an integer number (554690757).

Almost surely, 2^1109381513 is an apocalyptic number.

It is an amenable number.

1109381513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109381513 is an equidigital number, since it uses as much as digits as its factorization.

1109381513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1109381513 is about 33307.3792574558. The cubic root of 1109381513 is about 1035.2064632031.

The spelling of 1109381513 in words is "one billion, one hundred nine million, three hundred eighty-one thousand, five hundred thirteen".