1131214393 has 2 divisors, whose sum is σ = 1131214394. Its totient is φ = 1131214392.

The previous prime is 1131214361. The next prime is 1131214417. The reversal of 1131214393 is 3934121311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1072431504 + 58782889 = 32748^2 + 7667^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131214393 - 2⁵ = 1131214361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131214093) 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, 565607196 + 565607197.

It is an arithmetic number, because the mean of its divisors is an integer number (565607197).

Almost surely, 2^1131214393 is an apocalyptic number.

It is an amenable number.

1131214393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131214393 is an equidigital number, since it uses as much as digits as its factorization.

1131214393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 1131214393 is about 33633.5307840256. The cubic root of 1131214393 is about 1041.9534270246.

The spelling of 1131214393 in words is "one billion, one hundred thirty-one million, two hundred fourteen thousand, three hundred ninety-three".