1111000997 has 2 divisors, whose sum is σ = 1111000998. Its totient is φ = 1111000996.

The previous prime is 1111000967. The next prime is 1111001027. The reversal of 1111000997 is 7990001111.

It is a balanced prime because it is at equal distance from previous prime (1111000967) and next prime (1111001027).

It can be written as a sum of positive squares in only one way, i.e., 1109622721 + 1378276 = 33311^2 + 1174^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111000997 - 2¹⁰ = 1110999973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111000907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555500498 + 555500499.

It is an arithmetic number, because the mean of its divisors is an integer number (555500499).

Almost surely, 2^1111000997 is an apocalyptic number.

It is an amenable number.

1111000997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111000997 is an equidigital number, since it uses as much as digits as its factorization.

1111000997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 29.

The square root of 1111000997 is about 33331.6815807424. The cubic root of 1111000997 is about 1035.7099525064.

The spelling of 1111000997 in words is "one billion, one hundred eleven million, nine hundred ninety-seven", and thus it is an aban number.