1109999993 has 2 divisors, whose sum is σ = 1109999994. Its totient is φ = 1109999992.

The previous prime is 1109999971. The next prime is 1110000019. The reversal of 1109999993 is 3999999011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 890604649 + 219395344 = 29843^2 + 14812^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109999993 - 2¹² = 1109995897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1109999903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554999996 + 554999997.

It is an arithmetic number, because the mean of its divisors is an integer number (554999997).

Almost surely, 2^1109999993 is an apocalyptic number.

It is an amenable number.

1109999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109999993 is an equidigital number, since it uses as much as digits as its factorization.

1109999993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1594323, while the sum is 59.

The square root of 1109999993 is about 33316.6623928628. The cubic root of 1109999993 is about 1035.3988032719.

The spelling of 1109999993 in words is "one billion, one hundred nine million, nine hundred ninety-nine thousand, nine hundred ninety-three".