1105121393 has 2 divisors, whose sum is σ = 1105121394. Its totient is φ = 1105121392.

The previous prime is 1105121333. The next prime is 1105121417. The reversal of 1105121393 is 3931215011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1100049889 + 5071504 = 33167^2 + 2252^2 .

It is an emirp because it is prime and its reverse (3931215011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105121393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1105121333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552560696 + 552560697.

It is an arithmetic number, because the mean of its divisors is an integer number (552560697).

Almost surely, 2^1105121393 is an apocalyptic number.

It is an amenable number.

1105121393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105121393 is an equidigital number, since it uses as much as digits as its factorization.

1105121393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 1105121393 is about 33243.3661502562. The cubic root of 1105121393 is about 1033.8796695981.

The spelling of 1105121393 in words is "one billion, one hundred five million, one hundred twenty-one thousand, three hundred ninety-three".