1119105997 has 2 divisors, whose sum is σ = 1119105998. Its totient is φ = 1119105996.

The previous prime is 1119105979. The next prime is 1119106013. The reversal of 1119105997 is 7995019111.

Together with previous prime (1119105979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 823747401 + 295358596 = 28701^2 + 17186^2 .

It is a cyclic number.

It is not a de Polignac number, because 1119105997 - 2¹¹ = 1119103949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1119105907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559552998 + 559552999.

It is an arithmetic number, because the mean of its divisors is an integer number (559552999).

Almost surely, 2^1119105997 is an apocalyptic number.

It is an amenable number.

1119105997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1119105997 is an equidigital number, since it uses as much as digits as its factorization.

1119105997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25515, while the sum is 43.

The square root of 1119105997 is about 33453.0416703773. The cubic root of 1119105997 is about 1038.2224310257. Note that the first 3 decimals are identical.

The spelling of 1119105997 in words is "one billion, one hundred nineteen million, one hundred five thousand, nine hundred ninety-seven".