1111085021747 has 2 divisors, whose sum is σ = 1111085021748. Its totient is φ = 1111085021746.

The previous prime is 1111085021743. The next prime is 1111085021759. The reversal of 1111085021747 is 7471205801111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111085021747 - 2² = 1111085021743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111085021747.

It is not a weakly prime, because it can be changed into another prime (1111085021743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555542510873 + 555542510874.

It is an arithmetic number, because the mean of its divisors is an integer number (555542510874).

Almost surely, 2^{1111085021747} is an apocalyptic number.

1111085021747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111085021747 is an equidigital number, since it uses as much as digits as its factorization.

1111085021747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 38.

The spelling of 1111085021747 in words is "one trillion, one hundred eleven billion, eighty-five million, twenty-one thousand, seven hundred forty-seven".