111121393 has 2 divisors, whose sum is σ = 111121394. Its totient is φ = 111121392.

The previous prime is 111121379. The next prime is 111121399. The reversal of 111121393 is 393121111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63552784 + 47568609 = 7972^2 + 6897^2 .

It is a cyclic number.

It is not a de Polignac number, because 111121393 - 2¹³ = 111113201 is a prime.

It is not a weakly prime, because it can be changed into another prime (111121399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560696 + 55560697.

It is an arithmetic number, because the mean of its divisors is an integer number (55560697).

Almost surely, 2^111121393 is an apocalyptic number.

It is an amenable number.

111121393 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121393 is an equidigital number, since it uses as much as digits as its factorization.

111121393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 22.

The square root of 111121393 is about 10541.4132354253. The cubic root of 111121393 is about 480.7646853616.

The spelling of 111121393 in words is "one hundred eleven million, one hundred twenty-one thousand, three hundred ninety-three".